Video troubleshooting

Problem	Checks
Black output	Target layer set; output window visible on correct monitor; opacity; test pattern sanity
Wrong place	Layer rect; screen placement on canvas; expand/stretch mode
Dropped frames	Prefer performance; reduce layers; disk; quality mode
Tearing	Prefer VSync
Preview poor, output fine	Preview quality half/quarter — expected
No audio with video	Embedded audio enabled; audio patch assigned
Subtitles missing	Text-based only; correct stream/sidecar; not bitmap

Related

• Output preferences
• Technical decode & present