A chinese video file which show the problem.
A Chinese video.mp4 (video/mp4), 1.10 MB, created by CH_LUT. on 2021-07-26 16:04:38 UTC
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Creator: CH_LUT.
Created: 2021-07-26 16:04:38 UTC
Size: 1.10 MB

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Attachments on bug 143477: 173863 | 173864 | 173869