Do these 3 things before closing this tab:
1Repair Windows errors before they cause bigger problems2Scan for outdated or missing drivers - takes under a minute3Clear out junk files and repair common Windows errorsFirst find out whether the black interval is in the stream you are sending or only in a viewer’s playback. Check the encoder preview and a local recording around the transition, then compare playback on another device or connection. That distinction points you toward the right checks; YouTube does not identify one specific cause or guaranteed fix for black screens between videos in a loop.
1. Check whether the black screen is in the outgoing stream
Watch the encoder preview as the loop moves from one video to the next. If you record locally, review that recording at the same transition. YouTube’s live-stream troubleshooting guidance recommends checking the encoder output, dashboard errors and CPU load, and reviewing the local archive for audio or video problems.
- The encoder preview and local recording both go black: the blank interval is present before or during the stream’s encoding. Inspect the video source and how your encoder or playlist handles the transition. YouTube’s guidance does not specify a particular playlist transition setting for this symptom.
- The preview looks normal but the local recording is black: compare where and how the recording is made, then inspect the encoder’s output and any errors shown in its dashboard. The discrepancy alone does not establish a cause.
- The preview and local recording look normal: continue with playback checks below. The problem may be specific to delivery or an individual viewer, but the symptom by itself cannot confirm that.
Also note whether audio continues during the blank interval. That observation can help describe the issue when you compare recordings or report it, but it does not identify the cause on its own.
2. If the encoder output is healthy, test the connection
After checking the encoder preview and recording, test the outbound internet connection. YouTube Help says, “If your stream looks or sounds healthy, there may be an issue with your outbound Internet connection.” If a connection test shows a problem, YouTube advises contacting your internet provider. A healthy preview does not by itself prove that the connection is responsible, so compare the stream on other devices and networks as well.
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3. Find out whether viewers are affected differently
Try the live stream on another supported device and connection. Change one factor at a time—device, network, or whether you are viewing the encoder preview/local recording versus YouTube playback—so you can tell which observations differ. This is a practical way to narrow the issue, not a YouTube-published test protocol.
- Only one device or connection shows the black interval: try restarting or updating the browser, YouTube app, or device, switch to another connection, and manually change playback quality if that option is available. These are general YouTube playback checks, not guaranteed fixes for a gap between separate videos.
- Several viewers on different connections report it: inspect the encoder output and local archive again. YouTube notes that reports across different internet connections may point to an encoder issue, but compare the evidence rather than diagnosing from viewer reports alone.
YouTube automatically transcodes live streams into multiple output formats for viewers on different devices and networks. That platform behavior does not establish why a particular loop has a black interval.
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4. Record what you find and report persistent problems
If the problem continues, collect observations before escalating. Note whether the encoder preview and local recording also contain the interval, whether audio continues, and whether it affects multiple devices or networks. For a viewer-side playback issue, use YouTube’s report-a-problem guidance. For an ongoing live-stream issue, follow the reporting options in YouTube’s live-stream troubleshooting guidance.
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