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Fix OBS Showing a Black Screen When Looping Cartoons in a YouTube Livestream

Check the right OBS loop setting, source visibility, and output stage to troubleshoot a cartoon that appears black in a YouTube livestream.
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If a cartoon is black in your OBS YouTube livestream, first identify whether it is a single-file Media Source or a VLC Video playlist, then check that source’s loop setting, visibility, and position in the Sources list. The title alone does not reveal whether the black image is in OBS’s preview, its recording/program output, or YouTube, so locate the symptom before trying capture-specific fixes.

1. Identify how the cartoon is playing

In OBS, look in the Sources dock and select the item that plays the cartoon. The source type determines which loop control and prerequisites to check.

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One cartoon file: Media Source

OBS’s built-in Media Source plays a local media file. Open its properties and check that the correct file is selected and that Loop is enabled if you want it to start again after playback completes. OBS documents common video and audio formats, but its guide does not establish which formats or codecs your particular file supports.

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A playlist: VLC Video

For a playlist, use the VLC Video source and check Loop Playlist. This source depends on VLC being installed; on a 64-bit OBS setup, use 64-bit VLC. If VLC is missing or the bitness does not match, address that dependency before troubleshooting the cartoon as if it were a single Media Source.

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OBS documents these source behaviors in its Media Sources guide.

2. Check visibility, layer order, and placement

  1. In the Sources dock, make sure the eye/visibility control for the cartoon source is enabled.
  2. Check the source order. OBS displays sources higher in the list above sources below them; a visible source above the cartoon can cover it.
  3. Select the cartoon source and inspect its position and size in the preview. Make sure it is on the canvas and not reduced or positioned outside the visible area.

These checks follow OBS’s explanation of source visibility, ordering, position, and sizing.

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3. Find where the image turns black

Check the cartoon at three points: the source/scene preview in OBS, a short local recording or OBS program output, and the YouTube livestream. This split helps narrow down whether the problem is already present in the scene or appears later in the output path; OBS does not publish a decision tree for this exact symptom.

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  • Black in the OBS preview: Recheck the source type, selected file or playlist, loop control, visibility, order, and placement.
  • Visible in the preview but black in the recording or program output: Make a short local recording and play it back. This distinguishes the scene preview from the resulting output.
  • Visible in the recording but black on YouTube: Compare the OBS output with what YouTube displays, and verify the correct YouTube stream is receiving the intended OBS output. OBS’s published material does not identify a specific YouTube-side cause for this symptom.

4. Use capture troubleshooting only for capture sources

Game Capture and display capture are different from playing a local cartoon file. OBS’s Game Capture troubleshooting applies when the black image comes from a Game Capture source. Its laptop/GPU guidance concerns capture behavior such as display capture on dual-GPU laptops; it does not establish that a Media Source cartoon has a GPU mismatch. Follow those guides only if the source that is actually black is one of those capture types: Game Capture troubleshooting and laptop troubleshooting.

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5. Test before relying on the livestream

After changing the source or scene, make a short recording or test stream and play it back. OBS’s Quick Start Guide recommends testing settings with a short recording or stream before the first live session. Confirm both that the cartoon is visible and that it restarts as intended before using the setup for a longer broadcast.

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If your goal is to keep uploaded cartoons looping on YouTube without leaving OBS or a computer running at home, StreamNeo is a cloud option. Upload the recording or build a playlist, add your YouTube stream key, and go live. It plays uploaded videos to YouTube; it does not broadcast from a camera.

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