diff --git a/backend/nsfwapp.exe b/backend/nsfwapp.exe
index 76429d0..427d53c 100644
Binary files a/backend/nsfwapp.exe and b/backend/nsfwapp.exe differ
diff --git a/backend/recorder.go b/backend/recorder.go
index 7bb31eb..6799271 100644
--- a/backend/recorder.go
+++ b/backend/recorder.go
@@ -451,23 +451,56 @@ func runJob(ctx context.Context, job *RecordJob, req RecordRequest) {
 		return
 	}
 
-	// pre-queue auto delete (small)
+	// ✅ harte Schranke: leere / ungültige Output-Dateien nie in den Postwork schicken
 	{
-		s := getSettings()
-		minMB := s.AutoDeleteSmallDownloadsBelowMB
-		if s.AutoDeleteSmallDownloads && minMB > 0 {
-			threshold := int64(minMB) * 1024 * 1024
-			if fi, serr := os.Stat(out); serr == nil && fi != nil && !fi.IsDir() {
-				jobsMu.Lock()
-				job.SizeBytes = fi.Size()
-				jobsMu.Unlock()
-				notifyJobsChanged()
+		fi, serr := os.Stat(out)
+		if serr != nil || fi == nil || fi.IsDir() || fi.Size() <= 0 {
+			_ = removeWithRetry(out)
+			purgeDurationCacheForPath(out)
+
+			jobsMu.Lock()
+			delete(jobs, job.ID)
+			jobsMu.Unlock()
+
+			notifyJobsChanged()
+			notifyDoneChanged()
+
+			if shouldLogRecordInfo(req) {
+				if serr != nil {
+					fmt.Println("🧹 removed invalid output before postwork:", filepath.Base(out), "(stat error:", serr, ")")
+				} else if fi == nil || fi.IsDir() {
+					fmt.Println("🧹 removed invalid output before postwork:", filepath.Base(out), "(not a regular file)")
+				} else {
+					fmt.Println("🧹 removed empty output before postwork:", filepath.Base(out), "(0 bytes)")
+				}
+			}
+			return
+		}
+	}
+
+	// pre-queue gate: nur in die Nachbearbeitung, wenn Datei behalten werden soll
+	{
+		fi, serr := os.Stat(out)
+		if serr == nil && fi != nil && !fi.IsDir() {
+			jobsMu.Lock()
+			job.SizeBytes = fi.Size()
+			jobsMu.Unlock()
+			notifyJobsChanged()
+
+			s := getSettings()
+			minMB := s.AutoDeleteSmallDownloadsBelowMB
+
+			// ✅ Wenn AutoDelete aktiv ist und Datei unter Schwellwert liegt:
+			//    NICHT in die Postwork-Queue aufnehmen, sondern direkt löschen + return.
+			if s.AutoDeleteSmallDownloads && minMB > 0 {
+				threshold := int64(minMB) * 1024 * 1024
 
 				if fi.Size() > 0 && fi.Size() < threshold {
 					base := filepath.Base(out)
 					id := stripHotPrefix(strings.TrimSuffix(base, filepath.Ext(base)))
 
-					if derr := removeWithRetry(out); derr == nil || os.IsNotExist(derr) {
+					derr := removeWithRetry(out)
+					if derr == nil || os.IsNotExist(derr) {
 						removeGeneratedForID(id)
 						purgeDurationCacheForPath(out)
 
@@ -479,12 +512,12 @@ func runJob(ctx context.Context, job *RecordJob, req RecordRequest) {
 						notifyDoneChanged()
 
 						if shouldLogRecordInfo(req) {
-							fmt.Println("🧹 auto-deleted (pre-queue):", base, "(size: "+formatBytesSI(fi.Size())+")")
+							fmt.Println("🧹 auto-deleted before enqueue:", base, "(size: "+formatBytesSI(fi.Size())+", threshold: "+formatBytesSI(threshold)+")")
 						}
 						return
-					} else {
-						fmt.Println("⚠️ auto-delete (pre-queue) failed:", derr)
 					}
+
+					fmt.Println("⚠️ auto-delete before enqueue failed:", derr)
 				}
 			}
 		}
@@ -556,6 +589,34 @@ func runJob(ctx context.Context, job *RecordJob, req RecordRequest) {
 
 			// 2) Move to done
 			setPhase("moving", 78)
+
+			// ✅ auch nach Remux nochmal hart prüfen: keine 0-Byte-Dateien nach done verschieben
+			{
+				fi, serr := os.Stat(out)
+				if serr != nil || fi == nil || fi.IsDir() || fi.Size() <= 0 {
+					_ = removeWithRetry(out)
+					purgeDurationCacheForPath(out)
+
+					jobsMu.Lock()
+					delete(jobs, job.ID)
+					jobsMu.Unlock()
+
+					notifyJobsChanged()
+					notifyDoneChanged()
+
+					if shouldLogRecordInfo(req) {
+						if serr != nil {
+							fmt.Println("🧹 removed invalid post-remux output:", filepath.Base(out), "(stat error:", serr, ")")
+						} else if fi == nil || fi.IsDir() {
+							fmt.Println("🧹 removed invalid post-remux output:", filepath.Base(out), "(not a regular file)")
+						} else {
+							fmt.Println("🧹 removed empty post-remux output:", filepath.Base(out), "(0 bytes)")
+						}
+					}
+					return nil
+				}
+			}
+
 			if moved, err2 := moveToDoneDir(out); err2 == nil && strings.TrimSpace(moved) != "" {
 				out = strings.TrimSpace(moved)
 				jobsMu.Lock()