Video is blank, skipped, or not behaving as expected

What you may be seeing

• An uploaded video does not appear or play correctly on a screen.

What usually causes it

• Unsupported/mislabeled video format.
• Video exceeds upload or player-cache expectations.
• The screen has not activated the release containing the video.
• Browser autoplay/audio policy prevents the expected sound behavior.
• A native-player/platform-specific media transport issue occurred.

Do this

1. Confirm the file is a supported MP4/WebM and successfully exists in Media.
2. Check Publish warnings for missing/oversized/external assets.
3. Check the affected screen's feed/deployment state; do not debug video rendering while it is still on the old release.
4. For browser-based TV playback, design for autoplay-safe muted signage behavior rather than relying on audible autoplay.
5. For Roku, use uploaded CanvasRelay video rather than YouTube/Web embed and inspect device errors if native video itself fails.

You know it is fixed when

• The target screen is on the current release and the video renders/loops as expected on that platform.