From 5788d74001b4f2dffcbbd9e7320b360b84168951 Mon Sep 17 00:00:00 2001
From: Towsty <ianjmcarr@gmail.com>
Date: Thu, 1 Oct 2026 17:06:25 -0500
Subject: [PATCH] Add desktop Batch toggle, fix xAIGen library hide/selection,
 per-engine steps/CFG, and mobile prompt editor.

Desktop Batch splits only on double blank lines when enabled; library hide actually conceals thumbs and pinned clicks stick; steps/CFG restore per image model; mobile opens a near-fullscreen prompt editor.
---
 components/studio2/Bench.vue        | 119 ++++++++++++++++++++++------
 components/studio2/LibraryModal.vue |   4 +-
 components/studio2/Mobile.vue       |  90 ++++++++++++++++++++-
 shared/studio2/styles.mjs           |   8 ++
 shared/studio2/viewer.mjs           |   5 +-
 tests/studio2-bench.test.mjs        |   8 +-
 6 files changed, 203 insertions(+), 31 deletions(-)

diff --git a/components/studio2/Bench.vue b/components/studio2/Bench.vue
index e9566db..f11742f 100644
--- a/components/studio2/Bench.vue
+++ b/components/studio2/Bench.vue
@@ -124,12 +124,16 @@
         ref="promptArea"
         v-model="form.promptSections.action"
         class="field-area"
-        placeholder="Describe the image or the shot. Blank line between prompts for a batch."
+        :placeholder="batchMode ? 'Separate prompts with two blank lines.' : 'Describe the image or the shot.'"
         @select="capturePromptCaret"
         @click="capturePromptCaret"
         @keyup="capturePromptCaret"
        />
-       <p v-if="imagePromptCount > 1" class="mt-1 text-[var(--type-sm)] text-[var(--muted)]">{{ imagePromptCount }} prompts · queued in order</p>
+       <label v-if="!video && form.mode==='generate'" class="mt-2 inline-flex items-center gap-2 text-[var(--type-sm)] text-[var(--muted)]">
+        <input v-model="batchMode" type="checkbox" class="accent-[var(--amber)]">Batch
+       </label>
+       <p v-if="batchMode && imagePromptCount > 1" class="mt-1 text-[var(--type-sm)] text-[var(--muted)]">{{ imagePromptCount }} prompts · queued in order</p>
+       <p v-else-if="batchMode" class="mt-1 text-[11px] text-[var(--muted)]">Two blank lines between prompts</p>
       </label>
       <label v-if="form.engine==='qwen21' && (form.mode==='generate' || form.mode==='edit')" class="inline-flex items-center gap-2 text-[var(--type-sm)] text-[var(--muted)]">
        <input v-model="form.enhancePrompt" type="checkbox" class="accent-[var(--amber)]">Enhance prompt
@@ -353,6 +357,7 @@
      :selected="selected"
      :folder-id="form.folderId"
      :preview-hidden="!eyeOpen"
+     :is-hidden="isHidden"
      @close="libraryOpen=false"
      @select="selectOutput"
      @use-image="onLibraryUseImage"
@@ -407,7 +412,7 @@
     <div class="queue-foot">
      <button type="button" class="generate-cta" :disabled="submitting" @click="queue">
       <span aria-hidden="true">▶</span>
-      {{ submitting ? 'Queuing…' : (imagePromptCount > 1 ? `Generate · ${imagePromptCount} prompts` : 'Generate') }}
+      {{ submitting ? 'Queuing…' : (batchMode && imagePromptCount > 1 ? `Generate · ${imagePromptCount} prompts` : 'Generate') }}
      </button>
      <p v-if="error" class="queue-foot-error">{{ error }}</p>
      <p class="tiny">
@@ -481,7 +486,7 @@ import {queueJobs,jobStageLabel,jobProgressView,elapsedSeconds} from '~/shared/s
 import {gpuStatus} from '~/shared/studio2/status.mjs'
 import {CAPTION_STYLES} from '~/shared/caption.mjs'
 import {applyUploadedStill} from '~/shared/studio2/upload.mjs'
-import {defaultNegatives,parseBatch} from '~/shared/studio2/styles.mjs'
+import {defaultNegatives,parseBatch,parseBatchDoubleBlank} from '~/shared/studio2/styles.mjs'
 import {randomSeed} from '~/shared/studio2/seed.mjs'
 import {
   photosPlan,
@@ -553,6 +558,8 @@ function benchDraftPayload(){
    fps:form.settings?.fps,
    loraStack:structuredClone(form.settings?.loraStack||[])
   },
+  engineSampling:structuredClone(engineSampling),
+  batchMode:!!batchMode.value,
   eyeOpen:!!eyeOpen.value,
   hideInputs:!!hideInputs.value,
   music:structuredClone({tags:music.tags,lyrics:music.lyrics,duration:music.duration,seed:music.seed,name:music.name})
@@ -597,6 +604,15 @@ function restoreBenchDraft(){
    loraStack:Array.isArray(draft.settings.loraStack)?draft.settings.loraStack:form.settings.loraStack
   })
  }
+ if(draft.engineSampling && typeof draft.engineSampling==='object'){
+  for(const key of ['flux','krea','qwen21'] as const){
+   const row=draft.engineSampling[key]
+   if(row && Number.isFinite(Number(row.steps)) && Number.isFinite(Number(row.cfg))){
+    engineSampling[key]={steps:Number(row.steps),cfg:Number(row.cfg)}
+   }
+  }
+ }
+ if(draft.batchMode!=null)batchMode.value=!!draft.batchMode
  if(draft.eyeOpen!=null)eyeOpen.value=!!draft.eyeOpen
  if(draft.hideInputs!=null)hideInputs.value=!!draft.hideInputs
  if(draft.music){
@@ -644,6 +660,13 @@ watch(()=>[currentLoraUse.value,form.settings.loraStack],()=>loraMemory.sync(for
 const route=useRoute()
 const tasks=['generate','edit','compose','refine','video','extend','music']
 const settingsOpen=ref(false),detailsOpen=ref(false),submitting=ref(false),error=ref(''),batchText=ref('')
+const batchMode=ref(false)
+const selectionPinned=ref(false)
+const engineSampling=reactive<Record<string,{steps:number;cfg:number}>>({
+ flux:{steps:24,cfg:4},
+ krea:{steps:24,cfg:4},
+ qwen21:{steps:25,cfg:1}
+})
 const viewerVideo=ref<HTMLVideoElement|null>(null)
 const viewerMuted=ref(false)
 const videoTime=ref(0)
@@ -665,14 +688,32 @@ const engineOptions=computed(()=>{
   {value:'qwen21',label:'Qwen 2.1',disabled:!qwenAllowed.value,hint:qwenAllowed.value?'':'Generate and Edit only'}
  ]
 })
+function defaultSamplingFor(engine:string){
+ if(engine==='qwen21') return {steps:form.turbo?6:25,cfg:1}
+ if(engine==='minimax' || engine==='ltx') return {steps:8,cfg:1.5}
+ return {steps:24,cfg:4}
+}
+function rememberEngineSampling(engine:string){
+ if(!['flux','krea','qwen21'].includes(engine)) return
+ engineSampling[engine]={
+  steps:Number(form.settings.steps)||defaultSamplingFor(engine).steps,
+  cfg:Number(form.settings.cfg)||defaultSamplingFor(engine).cfg
+ }
+}
+function applyEngineSampling(engine:string){
+ const saved=engineSampling[engine]
+ const fallback=defaultSamplingFor(engine)
+ form.settings.steps=saved?.steps ?? fallback.steps
+ form.settings.cfg=saved?.cfg ?? fallback.cfg
+}
 watch(engineOptions,opts=>{
  const current=opts.find(o=>o.value===form.engine)
  if(!current || current.disabled)form.engine=opts.find(o=>!o.disabled)?.value || form.engine
 })
 watch(()=>form.engine,(engine,prev)=>{
- if(engine==='qwen21' && prev!=='qwen21'){
-  form.settings.steps=form.turbo?6:25
-  form.settings.cfg=1
+ if(prev && prev!==engine) rememberEngineSampling(prev)
+ if(['flux','krea','qwen21'].includes(engine)) applyEngineSampling(engine)
+ if(engine==='qwen21'){
   form.lockFace=false
   form.lockOutfit=false
  }
@@ -683,11 +724,13 @@ watch(()=>form.turbo,on=>{
  if(form.engine!=='qwen21')return
  form.settings.steps=on?6:25
  form.settings.cfg=1
+ rememberEngineSampling('qwen21')
+})
+watch(()=>[form.settings.steps,form.settings.cfg],()=>{
+ if(['flux','krea','qwen21'].includes(form.engine)) rememberEngineSampling(form.engine)
 })
 watch(()=>[form.mode,form.engine],([mode,engine])=>{
  if(engine==='qwen21' && mode==='edit'){
-  form.settings.steps=form.turbo?6:25
-  form.settings.cfg=1
   form.lockFace=false
   form.lockOutfit=false
  }
@@ -708,6 +751,7 @@ watch(()=>[form.mode,form.engine],([mode,engine])=>{
 })
 watch(()=>form.folderId,(id,prev)=>{
  selected.value=null
+ selectionPinned.value=false
  // Wipe Photos only when leaving an existing folder — first restore from '' must keep the draft
  if(prev){
   form.imageAId=''
@@ -745,10 +789,10 @@ function onStagePreviewError(){
 watch(()=>selected.value?.id,()=>{stagePreviewNonce.value=0;stagePreviewRetries.value=0})
 const folderJobs=computed(()=>jobs.value.filter(j=>j.request.folderId===form.folderId))
 const benchJobs=computed(()=>queueJobs(folderJobs.value))
-/** Desktop image generate: blank-line paragraphs in the prompt box (same parseBatch as mobile batchText). */
+/** Desktop image Batch: double blank line only, and only when the toggle is on. */
 const imagePromptParts=computed(()=>{
- if(video.value || form.mode!=='generate') return [] as string[]
- return parseBatch(form.promptSections?.action)
+ if(video.value || form.mode!=='generate' || !batchMode.value) return [] as string[]
+ return parseBatchDoubleBlank(form.promptSections?.action)
 })
 const imagePromptCount=computed(()=>imagePromptParts.value.length)
 const musicJobs=computed(()=>studioQueue.value
@@ -1410,12 +1454,23 @@ function chooseTask(task:string){
   }
   return
  }
- const was=video.value;form.mode=task;form.startClipId='';if(video.value!==was){form.engine=video.value?(xaigen && form.engine==='ltx'?'ltx':'minimax'):'flux';form.settings.steps=video.value?8:24;form.settings.cfg=video.value?1.5:4}
+ const was=video.value;form.mode=task;form.startClipId=''
+ if(video.value!==was){
+  if(was && ['flux','krea','qwen21'].includes(form.engine)) rememberEngineSampling(form.engine)
+  form.engine=video.value?(xaigen && form.engine==='ltx'?'ltx':'minimax'):'flux'
+  if(video.value){form.settings.steps=8;form.settings.cfg=1.5}
+  else applyEngineSampling(form.engine)
+ }
  if(selected.value?.kind==='track' && task!=='music') selected.value=family.value.find((a:any)=>a.kind!=='track') || null
 }
 function onTaskSelect(event:Event){chooseTask((event.target as HTMLSelectElement).value)}
 function chooseClip(id:string){if(!id){form.startClipId='';return}const clip=clips.value.find((c:any)=>c.id===id);if(clip){try{Object.assign(form,bindClip(form,clip,xaigen,loraMemory))}catch(e:any){error.value=e?.message||'Could not copy clip settings.';form.startClipId=clip.id;form.mode='extend';form.engine=xaigen && form.engine==='ltx'?'ltx':'minimax'}}}
-function selectOutput(item:any){stageMenu.value='';selected.value=item;if(form.mode==='extend' && item?.kind==='clip')chooseClip(item.id)}
+function selectOutput(item:any){
+ stageMenu.value=''
+ selected.value=item
+ selectionPinned.value=!!item
+ if(form.mode==='extend' && item?.kind==='clip')chooseClip(item.id)
+}
 function restore(item:any){Object.assign(form,restoreAll(form,item,xaigen,loraMemory));form.guides=form.guides||[];batchText.value=''}
 function focusJob(job:any){selectOutput(job.outputs?.at(-1)||null);focusedJobId.value=job.id}
 async function loadLoras(fresh=false){try{loraNames.value=await $fetch('/api/studio-2/loras'+(fresh?'?fresh=1':''))}catch{error.value='Could not refresh LoRAs. The last loaded list is still available.'}}
@@ -1484,16 +1539,24 @@ function ingestNewOutputs(nextJobs:any[]){
   }
  }
  if(fresh){
-  const existingFresh=family.value.find(a=>a.id===fresh.id)
-  if(existingFresh) selected.value=existingFresh
-  else{
-   const kind=fresh.kind==='clip'?'clip':'still'
-   selected.value={...fresh,kind,folderId:form.folderId,studio2:fresh.studio2}
+  // Merge into catalog above; only auto-select when the user has not pinned a pick.
+  if(!selectionPinned.value){
+   const existingFresh=family.value.find(a=>a.id===fresh.id)
+   if(existingFresh) selected.value=existingFresh
+   else{
+    const kind=fresh.kind==='clip'?'clip':'still'
+    selected.value={...fresh,kind,folderId:form.folderId,studio2:fresh.studio2}
+   }
   }
+ }else if(selected.value){
+  const next=reconcileSelection(selected.value,family.value)
+  if(form.mode!=='music' && next?.kind==='track'){
+   const nonTrack=family.value.find((a:any)=>a.kind!=='track') || null
+   if(nonTrack && !selectionPinned.value) selected.value=nonTrack
+   else if(next?.id===selected.value.id) selected.value=next
+  }else if(next) selected.value=next
  }else{
-  let next=reconcileSelection(selected.value,family.value)
-  if(form.mode!=='music' && next?.kind==='track') next=family.value.find((a:any)=>a.kind!=='track') || null
-  selected.value=next
+  selected.value=reconcileSelection(null,family.value)
  }
  const newestTrack=(library.value.tracks||[]).filter((t:any)=>t.folderId===form.folderId).sort((a:any,b:any)=>(b.createdAt||0)-(a.createdAt||0))[0]
  if(form.mode==='music' && newestTrack && !seenOutputs.has(newestTrack.id)){
@@ -1528,10 +1591,12 @@ async function queue(){
    .filter((p:any)=>p?.stillId)
    .map((p:any)=>({stillId:String(p.stillId),role:String(p.role||'change')}))
   const promptAction=String(form.promptSections?.action||'')
-  // Image generate: split the prompt box on blank lines (parseBatch). Video/edit keep batchText.
-  const imageParts=(!video.value && form.mode==='generate') ? parseBatch(promptAction) : null
+  // Image generate + Batch on: double blank line only. Off: whole box is one prompt.
+  const imageParts=(!video.value && form.mode==='generate' && batchMode.value)
+   ? parseBatchDoubleBlank(promptAction)
+   : null
   const firstAction=imageParts?.length ? imageParts[0] : promptAction
-  const imageBatch=imageParts?.length ? imageParts.slice(1) : []
+  const imageBatch=imageParts && imageParts.length > 1 ? imageParts.slice(1) : []
   const promptSections=video.value
    ?{
      action:promptAction,
@@ -1600,6 +1665,7 @@ async function queue(){
 
   syncPhotosBindings()
   if(form.settings.seedMode!=='locked')form.settings.seed=randomSeed()
+  selectionPinned.value=false
   const body=applyPhotosToRequest({
    mode:optimisticRequest.mode==='edit' && parseBatch(batchText.value).length?'iterate':optimisticRequest.mode,
    engine:optimisticRequest.engine,
@@ -1686,7 +1752,7 @@ async function fetchHealth(){
 watch(()=>[
  form.mode,form.engine,form.folderId,form.enhancePrompt,form.turbo,form.lockFace,form.lockOutfit,
  form.promptSections,form.photos,form.imageStyles,form.settings,
- eyeOpen.value,hideInputs.value,
+ eyeOpen.value,hideInputs.value,batchMode.value,
  music.tags,music.lyrics,music.duration,music.seed,music.name
 ],()=>saveBenchDraft(),{deep:true})
 let timer:ReturnType<typeof setTimeout>,clock:ReturnType<typeof setInterval>,disposed=false
@@ -1696,6 +1762,7 @@ onMounted(()=>{
  loraMemory=createLoraMemory(xaigen,storage);loraMemory.sync(form);form.settings.seed=randomSeed()
  // First paint in ~2s: chrome + draft. Do not await library before the prompt works.
  restoreBenchDraft()
+ if(['flux','krea','qwen21'].includes(form.engine)) rememberEngineSampling(form.engine)
  if(!form.folderId && library.value.folders?.[0]?.id) form.folderId=library.value.folders[0].id
  loadRevealed(form.folderId)
  clock=setInterval(()=>{now.value=Date.now()},1000)
diff --git a/components/studio2/LibraryModal.vue b/components/studio2/LibraryModal.vue
index 7b30d9c..ad80ed9 100644
--- a/components/studio2/LibraryModal.vue
+++ b/components/studio2/LibraryModal.vue
@@ -78,14 +78,14 @@
                   />
                 </div>
                 <img
-                  v-else-if="liveThumbs.has(entry.key) && thumbSrc(entry)"
+                  v-else-if="!previewHidden && liveThumbs.has(entry.key) && thumbSrc(entry)"
                   :src="thumbSrc(entry)"
                   alt=""
                   loading="lazy"
                   decoding="async"
                   draggable="false"
                 >
-                <span v-else class="lib-modal-fallback" />
+                <span v-else class="lib-modal-fallback">{{ previewHidden ? 'Hidden' : '' }}</span>
                 <span class="lib-modal-kind">
                   {{ entry.kind === 'clip' ? 'Video' : entry.kind === 'track' ? 'Music' : 'Image' }}
                 </span>
diff --git a/components/studio2/Mobile.vue b/components/studio2/Mobile.vue
index 7cece3b..0ae9289 100644
--- a/components/studio2/Mobile.vue
+++ b/components/studio2/Mobile.vue
@@ -139,6 +139,7 @@
    :selected="ctx.selected"
    :folder-id="ctx.form?.folderId"
    :preview-hidden="!ctx.eyeOpen"
+   :is-hidden="ctx.isHidden"
    @close="ctx.closeLibrary()"
    @select="ctx.selectOutput"
    @use-image="ctx.onLibraryUseImage"
@@ -223,7 +224,17 @@
      <label class="m-label">Lyrics<textarea v-model="ctx.music.lyrics" rows="8" class="m-area" /></label>
     </template>
     <template v-else>
-     <label class="m-label">Prompt<textarea v-model="ctx.form.promptSections.action" rows="5" class="m-area" placeholder="Describe the image or the shot." /></label>
+     <label class="m-label">Prompt
+      <textarea
+       :value="ctx.form.promptSections.action"
+       rows="5"
+       class="m-area"
+       placeholder="Describe the image or the shot."
+       readonly
+       @focus="openPromptEditor"
+       @click="openPromptEditor"
+      />
+     </label>
      <label v-if="ctx.form.engine==='qwen21' && (ctx.form.mode==='generate' || ctx.form.mode==='edit')" class="m-check"><input v-model="ctx.form.enhancePrompt" type="checkbox"> Enhance prompt</label>
      <label v-if="ctx.form.engine==='qwen21' && (ctx.form.mode==='generate' || ctx.form.mode==='edit')" class="m-check"><input v-model="ctx.form.turbo" type="checkbox"> Turbo</label>
      <p v-if="ctx.form.engine==='qwen21' && ctx.form.turbo" class="m-muted">6-step Viggle distill. CFG stays 1. Enhance prompt recommended.</p>
@@ -355,6 +366,25 @@
     <button v-if="ctx.canClearFinished" type="button" class="m-link" @click="ctx.clearFinished">Clear finished</button>
    </div>
   </aside>
+
+  <div
+   v-if="promptEditorOpen"
+   class="m-prompt-editor"
+   role="dialog"
+   aria-modal="true"
+   aria-label="Edit prompt"
+  >
+   <header class="m-prompt-editor-head">
+    <strong>Prompt</strong>
+    <button type="button" @click="closePromptEditor">Done</button>
+   </header>
+   <textarea
+    ref="promptEditorEl"
+    v-model="promptEditorDraft"
+    class="m-prompt-editor-area"
+    placeholder="Describe the image or the shot."
+   />
+  </div>
  </div>
 </template>
 
@@ -364,12 +394,33 @@ export type Studio2MobileCtx = Record<string, any>
 const props = defineProps<{ ctx: Studio2MobileCtx }>()
 const sheet = ref('')
 const touchStart = ref<{ x: number; y: number } | null>(null)
+const promptEditorOpen = ref(false)
+const promptEditorDraft = ref('')
+const promptEditorEl = ref<HTMLTextAreaElement | null>(null)
+
+function openPromptEditor() {
+  promptEditorDraft.value = String(props.ctx.form?.promptSections?.action || '')
+  promptEditorOpen.value = true
+  nextTick(() => {
+    promptEditorEl.value?.focus()
+    const el = promptEditorEl.value
+    if (el) {
+      const n = el.value.length
+      el.setSelectionRange(n, n)
+    }
+  })
+}
+function closePromptEditor() {
+  if (props.ctx.form?.promptSections) props.ctx.form.promptSections.action = promptEditorDraft.value
+  promptEditorOpen.value = false
+}
 
 function toggleSheet(id: string) {
   sheet.value = sheet.value === id ? '' : id
 }
 function closeMenus() {
   sheet.value = ''
+  if (promptEditorOpen.value) closePromptEditor()
 }
 function runAction(kind: 'use-image' | 'use-prompt' | 'copy' | 'copy-raw' | 'load-input' | 'load-input-raw' | 'delete') {
   sheet.value = ''
@@ -726,4 +777,41 @@ watch(() => props.ctx.form.mode, () => { sheet.value = '' })
 .m-job-progress { display: flex; align-items: center; gap: 8px; margin-top: 6px; }
 .m-job-progress-bar { flex: 1; height: 4px; accent-color: var(--amber); }
 .m-link { border: 0; background: transparent; color: var(--amber); text-align: left; }
+.m-prompt-editor {
+  position: fixed;
+  inset: 0;
+  z-index: 90;
+  display: flex;
+  flex-direction: column;
+  background: #0e0e10;
+  padding: env(safe-area-inset-top, 0) env(safe-area-inset-right, 0) env(safe-area-inset-bottom, 0) env(safe-area-inset-left, 0);
+}
+.m-prompt-editor-head {
+  display: flex;
+  align-items: center;
+  justify-content: space-between;
+  padding: 12px 16px;
+  border-bottom: 1px solid var(--line);
+}
+.m-prompt-editor-head button {
+  border: 0;
+  background: transparent;
+  color: var(--amber);
+  font-size: 16px;
+  font-weight: 600;
+}
+.m-prompt-editor-area {
+  flex: 1;
+  width: 100%;
+  margin: 0;
+  padding: 16px;
+  border: 0;
+  resize: none;
+  background: #0e0e10;
+  color: #f3f1ea;
+  font: inherit;
+  font-size: 17px;
+  line-height: 1.45;
+  outline: none;
+}
 </style>
diff --git a/shared/studio2/styles.mjs b/shared/studio2/styles.mjs
index 1135c30..958491e 100644
--- a/shared/studio2/styles.mjs
+++ b/shared/studio2/styles.mjs
@@ -9,5 +9,13 @@ export function normalizeStyles(value={}) {
 }
 export function toggleStyle(value,chip,negative=false) { const next=normalizeStyles(value),key=negative?'negative':'positive',other=negative?'positive':'negative';next[other]=next[other].filter(s=>s!==chip);next[key]=next[key].includes(chip)?next[key].filter(s=>s!==chip):[...next[key],chip];return next }
 export function stylePrompt(value,negative=false){return normalizeStyles(value)[negative?'negative':'positive'].join(', ')}
+/** Single blank line (mobile / video / edit batchText). */
 export function parseBatch(value){return String(value||'').split(/\r?\n\s*\r?\n/).map(s=>s.trim()).filter(Boolean)}
+/**
+ * Desktop image Batch toggle: split only on a double blank line (two empty lines → \n\n\n+).
+ * A single newline or a single blank line stays inside the same prompt.
+ */
+export function parseBatchDoubleBlank(value){
+  return String(value||'').split(/\r?\n(?:[ \t]*\r?\n){2,}/).map(s=>s.trim()).filter(Boolean)
+}
 
diff --git a/shared/studio2/viewer.mjs b/shared/studio2/viewer.mjs
index 80a6325..dc3edad 100644
--- a/shared/studio2/viewer.mjs
+++ b/shared/studio2/viewer.mjs
@@ -6,7 +6,10 @@ export function folderAssets(library, jobs, folderId) {
 export function newestOutput(jobs, seen, folderId) {
  return jobs.filter(j=>j.request.folderId===folderId).flatMap(j=>j.outputs || []).filter(a=>!seen.has(a.id)).sort((a,b)=>(a.studio2?.savedAt || 0)-(b.studio2?.savedAt || 0)).at(-1) || null
 }
-export function reconcileSelection(selected, assets) { return assets.find(a=>a.id===selected?.id) || assets.at(-1) || null }
+export function reconcileSelection(selected, assets) {
+  if (!selected?.id) return assets.at(-1) || null
+  return assets.find(a => a.id === selected.id) || selected
+}
 export function activeJobs(jobs) { return jobs.filter(j=>['waking','enhancing','submitting','rendering','saving'].includes(j.state)) }
 export function previewHidden(asset, revealed, xaigen) {
  if (!xaigen || !asset?.id) return false
diff --git a/tests/studio2-bench.test.mjs b/tests/studio2-bench.test.mjs
index f173da0..5a19964 100644
--- a/tests/studio2-bench.test.mjs
+++ b/tests/studio2-bench.test.mjs
@@ -4,7 +4,7 @@ import {readFileSync} from 'node:fs'
 import ts from 'typescript'
 import {folderAssets,reconcileSelection,activeJobs,previewHidden} from '../shared/studio2/viewer.mjs'
 import {useAsHero,useAsSource,restoreAll,hydrateStudio2Job} from '../shared/studio2/input.mjs'
-import {toggleStyle,parseBatch,stylePrompt} from '../shared/studio2/styles.mjs'
+import {toggleStyle,parseBatch,parseBatchDoubleBlank,stylePrompt} from '../shared/studio2/styles.mjs'
 import {compilePrompt,validateRequest} from '../shared/studio2/contracts.mjs'
 import {cachedLoras} from '../shared/studio2/lora-cache.mjs'
 import {resolveQwen21Size} from '../shared/studio2/qwen21-size.mjs'
@@ -79,6 +79,12 @@ test('image chips compile positive and negative independently; video chips do no
  assert.match(q.compiledPrompt,/Photorealistic/);assert.doesNotMatch(q.compiledPrompt,/Comic|pores|tripod|hold|VIDEO ONLY/i);assert.deepEqual(q.imageStyles,styles)
  assert.doesNotMatch(compilePrompt(q.promptSections,false,q),/Picture 1/)
  assert.deepEqual(parseBatch('A wrapped\nsentence\n\nSecond shot\r\n\r\nThird'),['A wrapped\nsentence','Second shot','Third'])
+ assert.deepEqual(
+  parseBatchDoubleBlank('Prompt 1 starts here\nBal blaglas\nsldkjf lkaj\n\nsldkfjs lkdfj\nsdlfkjsdkljf\n\n\nPrompt 2 starts here flaskjflaskdj'),
+  ['Prompt 1 starts here\nBal blaglas\nsldkjf lkaj\n\nsldkfjs lkdfj\nsdlfkjsdkljf','Prompt 2 starts here flaskjflaskdj']
+ )
+ assert.deepEqual(parseBatchDoubleBlank('one\n\ntwo'),['one\n\ntwo'])
+ assert.deepEqual(parseBatchDoubleBlank('one\n\n\ntwo\n\n\n\nthree\n'),['one','two','three'])
 })
 test('qwen21 supports Generate and Edit with 25/1 defaults and no locks',()=>{
  const q=validateRequest({mode:'generate',engine:'qwen21',folderId:'f',promptSections:{action:'a red bicycle'},settings:{aspect:'1:1'}})