Handle HW fallback retry return

main.go

@@ -6230,7 +6230,9 @@ func (s *appState) startConvert(status *widget.Label, btn, cancelBtn *widget.But
 					_ = logFile.Close()
 				}
 				s.convertCancel = nil
-				return s.executeConvertJobWithFallback(ctx, job, progressCallback, true)
+				if err := s.executeConvertJobWithFallback(ctx, job, progressCallback, true); err == nil {
+					return
+				}
 			}
 
 			fyne.CurrentApp().Driver().DoFromGoroutine(func() {

scripts/build-linux.sh

@@ -31,6 +31,8 @@ cd "$PROJECT_ROOT"
 echo "🧹 Cleaning previous builds and cache..."
 go clean -cache -modcache -testcache 2>/dev/null || true
 rm -f "$BUILD_OUTPUT" 2>/dev/null || true
+# Also clear build cache directory to avoid permission issues
+rm -rf "${GOCACHE:-$HOME/.cache/go-build}" 2>/dev/null || true
 echo "✓ Cache cleaned"
 echo ""
 

scripts/build.sh

@@ -52,6 +52,8 @@ case "$OS" in
 
         echo "🧹 Cleaning previous builds..."
         rm -f VideoTools.exe 2>/dev/null || true
+        # Clear Go cache to avoid permission issues
+        go clean -cache -modcache -testcache 2>/dev/null || true
         echo "✓ Cache cleaned"
         echo ""