Save each Comfy run as a new clip even if the output filename repeats.

Purging desktop files let MiniMax reuse MiniMax_H3_00001_, so the next job returned the previous clip. Ignore stale events from the last job so a second generate cannot paste the first video over the new one.

pages/index.vue

@@ -487,6 +487,7 @@ let timer: ReturnType<typeof setInterval> | null = null
 let source: EventSource | null = null
 let pollTimer: ReturnType<typeof setInterval> | null = null
 let settledUi = false
+let listenGen = 0
 
 const elapsedLabel = computed(() => {
   const seconds = Math.floor(elapsedMs.value / 1000)
@@ -739,7 +740,7 @@ async function resumeActiveJob() {
     jobId.value = id
     concealOutput.value = hidden
     settledUi = false
-    applyJobEvent(snap, hidden, locked)
+    applyJobEvent(snap, hidden, locked, id)
     const running = snap.status === 'queued' || snap.status === 'uploading' || snap.status === 'running' || snap.type === 'snapshot'
     if (running && !settledUi) {
       busy.value = true
@@ -828,10 +829,14 @@ async function lockFolder(id: string) {
   }
 }
 
+function clipVideoUrl(clipId: string) {
+  return `/api/library/clips/${clipId}/video?t=${Date.now()}`
+}
+
 function openClip(item: LibraryClip) {
   lockedSave.value = false
   concealOutput.value = item.hideThumbnail
-  videoUrl.value = `/api/library/clips/${item.id}/video`
+  videoUrl.value = clipVideoUrl(item.id)
   awaitingReveal.value = item.hideThumbnail
   playerSize.value = { width: item.width || 1344, height: item.height || 768 }
   browseFolderId.value = item.folderId
@@ -874,6 +879,8 @@ async function generate() {
   }
   statusBusy.value = false
   busy.value = true
+  listenGen += 1
+  stopListen()
   settledUi = false
   progress.value = 1
   videoUrl.value = ''
@@ -905,6 +912,7 @@ async function generate() {
     jobId.value = started.jobId
     maxStep.value = started.steps
     playerSize.value = { width: started.width, height: started.height }
+    settledUi = false
     persistActiveJob(started.jobId, started.hideThumbnail === true || hideThumbnail.value, started.folderLocked === true)
     listen(started.jobId, started.hideThumbnail === true || hideThumbnail.value, started.folderLocked === true)
   } catch (error: any) {
@@ -927,7 +935,10 @@ function stopListen() {
   }
 }
 
-function applyJobEvent(payload: Record<string, any>, hidden: boolean, folderLocked: boolean) {
+function applyJobEvent(payload: Record<string, any>, hidden: boolean, folderLocked: boolean, expectedJobId: string) {
+  if (expectedJobId && jobId.value && expectedJobId !== jobId.value) return
+  if (payload.jobId && expectedJobId && payload.jobId !== expectedJobId) return
+
   if (payload.message) statusMessage.value = payload.message
   statusBusy.value = payload.type === 'busy' || payload.busy === true
   if (typeof payload.progress === 'number') progress.value = payload.progress
@@ -952,12 +963,12 @@ function applyJobEvent(payload: Record<string, any>, hidden: boolean, folderLock
       browseFolderId.value = folderId.value
       statusMessage.value = 'Saved to the locked folder. Unlock it to view.'
     } else if (payload.clipId) {
-      videoUrl.value = `/api/library/clips/${payload.clipId}/video`
+      videoUrl.value = clipVideoUrl(payload.clipId)
       awaitingReveal.value = Boolean(payload.hideThumbnail || hidden)
       concealOutput.value = awaitingReveal.value
       lockedSave.value = false
     } else {
-      videoUrl.value = `/api/media?filename=${encodeURIComponent(payload.filename)}&subfolder=${encodeURIComponent(payload.subfolder || 'video')}&type=${encodeURIComponent(payload.mediaType || 'output')}`
+      videoUrl.value = `/api/media?filename=${encodeURIComponent(payload.filename)}&subfolder=${encodeURIComponent(payload.subfolder || 'video')}&type=${encodeURIComponent(payload.mediaType || 'output')}&t=${Date.now()}`
       awaitingReveal.value = Boolean(payload.hideThumbnail || hidden)
       concealOutput.value = awaitingReveal.value
       lockedSave.value = false
@@ -983,26 +994,31 @@ function applyJobEvent(payload: Record<string, any>, hidden: boolean, folderLock
 }
 
 function listen(id: string, hidden: boolean, folderLocked = false) {
+  const gen = ++listenGen
   stopListen()
   source = new EventSource(`/api/generate/${id}/stream`)
   source.onmessage = (event) => {
-    applyJobEvent(JSON.parse(event.data), hidden, folderLocked)
+    if (gen !== listenGen) return
+    applyJobEvent(JSON.parse(event.data), hidden, folderLocked, id)
   }
   const tick = async () => {
-    if (settledUi) {
+    if (gen !== listenGen || settledUi) {
-      stopListen()
+      if (gen === listenGen && settledUi) stopListen()
       return
     }
     try {
       const snap = await $fetch<Record<string, any>>(`/api/generate/${id}`)
-      applyJobEvent(snap, hidden, folderLocked)
+      if (gen !== listenGen) return
+      applyJobEvent(snap, hidden, folderLocked, id)
     } catch {
+      if (gen !== listenGen) return
       try {
         const recovered = await $fetch<Record<string, any>>('/api/generate/recover', {
           method: 'POST',
           body: { jobId: id }
         })
-        applyJobEvent(recovered, hidden, folderLocked)
+        if (gen !== listenGen) return
+        applyJobEvent(recovered, hidden, folderLocked, id)
       } catch {
         // Job snapshot can 404 briefly after a restart; keep polling while busy.
       }

server/api/generate/recover.post.ts

@@ -12,12 +12,16 @@ export default defineEventHandler(async (event) => {
       return {
         type: 'snapshot',
         status: 'running',
+        jobId,
         message: 'Reconnecting to ComfyUI...',
         progress: 90,
         promptId: pending.promptId,
-        elapsedMs: Date.now() - pending.startedAt
+        elapsedMs: Date.now() - pending.startedAt,
+        hideThumbnail: pending.hideThumbnail,
+        folderLocked: pending.folderLocked
       }
     }
+    throw createError({ statusCode: 404, statusMessage: 'Job not found' })
   }
 
   const { owner } = assertLibraryOwner(event)

server/api/library/clips/[id]/video.get.ts

@@ -11,6 +11,6 @@ export default defineEventHandler((event) => {
   }
   setHeader(event, 'Content-Type', 'video/mp4')
   setHeader(event, 'Content-Disposition', `inline; filename="${safeDownloadName(clipTitle(clip))}.mp4"`)
-  setHeader(event, 'Cache-Control', 'private, max-age=3600')
+  setHeader(event, 'Cache-Control', 'private, no-store')
   return readFileSync(path)
 })

server/utils/jobs.ts

@@ -18,6 +18,7 @@ export interface JobEvent {
   queueRunning?: number
   queuePending?: number
   folderLocked?: boolean
+  jobId?: string
 }
 
 export interface Job {
@@ -89,6 +90,7 @@ export function listJobs() {
 
 export function jobSnapshot(job: Job) {
   return {
+    jobId: job.id,
     type: 'snapshot' as const,
     status: job.status,
     message: job.message,
@@ -108,6 +110,7 @@ export function jobSnapshot(job: Job) {
 }
 
 export function emitJob(job: Job, event: JobEvent) {
+  event.jobId = job.id
   if (event.message) job.message = event.message
   if (typeof event.progress === 'number') job.progress = event.progress
   if (typeof event.step === 'number') job.step = event.step

server/utils/library.ts

@@ -637,9 +637,6 @@ export async function saveClip(params: {
   const catalog = readCatalog(params.ownerKey)
   const folder = catalog.folders.find(item => item.id === params.folderId) || catalog.folders[0]
   if (!folder) throw createError({ statusCode: 400, statusMessage: 'No library folder available' })
-  if (params.comfyFilename && catalog.clips.some(clip => clip.comfyFilename === params.comfyFilename)) {
-    return catalog.clips.find(clip => clip.comfyFilename === params.comfyFilename) as LibraryClip
-  }
   const clip: LibraryClip = {
     id: crypto.randomUUID(),
     folderId: folder.id,

server/utils/pending.ts

@@ -91,6 +91,7 @@ export async function completePendingIfReady(pending: PendingJob) {
     status: 'complete' as const,
     message: pending.folderLocked ? 'Saved to the locked folder. Unlock it to view.' : 'Video ready',
     progress: 100,
+    jobId: pending.jobId,
     clipId: clip.id,
     filename: pending.folderLocked ? undefined : video.filename,
     subfolder: pending.folderLocked ? undefined : video.subfolder,