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If a YouTube Live loop shows a black screen between playlist videos, first find out whether the gap is already present in the encoder output or appears only after YouTube receives the stream. Check the encoder preview and a local recording at the transition, then compare them with the live playback. That split points you toward the media source and encoder, the outgoing connection, or a viewer’s playback device.
Find where the black screen enters the stream
Test a transition between playlist items while watching the encoder output. If possible, make or review a local recording of that output, then compare the same moment in YouTube playback. YouTube recommends testing and checking the Live Control Room preview before a planned stream, and checking the local archive when troubleshooting. This comparison applies those documented checks to the playlist-transition symptom; YouTube’s guidance does not identify one definitive cause or guaranteed fix for it.
| What you observe | Where to investigate first |
|---|---|
| The black frames appear in the encoder preview or local recording. | Inspect the media source, playlist transition timing, source routing, and encoder output. |
| The preview and recording look clean, but the live stream shows the gap. | Check stream-health messages and the outbound connection. |
| The gap appears for one viewer or device but not others. | Investigate that viewer’s playback device or connection. |
If the encoder preview or recording is black
When the black frames are already in the encoder output, focus on the video being sent to it rather than changing unrelated YouTube account settings.
- Check whether the source goes black at the exact playlist transition. Inspect the outgoing preview and how the encoder switches between items.
- Look for encoder errors and high CPU load around the transition. YouTube recommends checking both as part of live-stream troubleshooting.
- Review the local archive, if available, to confirm whether the defect is in the encoded output.
- Make sure the encoder software is up to date. If the same problem persists and you can test safely, YouTube suggests trying another encoder.
For a planned broadcast, check the preview in YouTube Live Control Room before starting. YouTube’s live-stream tips also advise: “Continuously monitor streams for audio and video quality.” YouTube live streaming tips
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If the encoder output looks clean
If the preview and local recording do not contain black frames, move downstream. Check YouTube’s stream-health messages and test the strength and stability of the outbound internet connection. YouTube notes that an encoder can appear healthy while viewers encounter errors because of an outbound connection issue.
Use YouTube’s live-stream troubleshooting guidance and encoder settings and stream-health guidance to review those checks. The bitrate and resolution recommendations on the encoder settings page are general streaming guidance, not a specific fix for black frames between playlist videos; don’t change them at random as a diagnosis.
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Check whether it is viewer-side playback
Compare the live stream on another supported device or connection if you can. If the transition is clean in the encoder and the issue is limited to one viewer, troubleshoot that playback path rather than assuming the broadcast itself contains a black frame. YouTube’s troubleshooting guidance includes trying another device and connection for playback problems.
Also distinguish a live production loop from YouTube’s viewer-side loop control. YouTube documents its loop option as a way for viewers to repeat a video or playlist during playback; that setting is not a live-stream production workflow and does not guarantee a seamless transition in a live feed assembled elsewhere. See Loop videos or playlists on YouTube — Computer.
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