Description

When using Capture Manager in Live Link Hub to discover takes which contain video encoded with the YUV444 pixel format will cause the application to hang.

The Windows Media Foundation library used to read the media files does not support the YUV444 pixel format.

This is the default output format for footage processed using the third party ffmpeg application.

Possible Workarounds

Reencode the video data to a supported pixel format (e.g. YUV420)

Steps to Reproduce
  1. Run Live Link Hub
  2. Go to the Capture Manager layout
  3. Create an ingest compatible device (e.g. Mono Video Ingest)
  4. Point the device at a take containing a YUV444 encoded video
  5. Select the device (if not selected automatically)

Expected Result

Take(s) discovered and listed in the Take Browser.

Observed Result

Live Link Hub hangs indefinitely

Have Comments or More Details?

There's no existing public thread on this issue, so head over to Questions & Answers just mention UE-290898 in the post.

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Unresolved
CreatedMay 28, 2025
UpdatedMay 29, 2025
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