Bug 515054

Summary: libx265 Codec Causes Video Glitching when Uploaded to YouTube
Product: [Applications] kdenlive Reporter: adamsurette
Component: Rendering & ExportAssignee: Jean-Baptiste Mardelle <jb>
Status: REPORTED ---    
Severity: normal    
Priority: NOR    
Version First Reported In: 25.12.0   
Target Milestone: ---   
Platform: Microsoft Windows   
OS: Microsoft Windows   
Latest Commit: Version Fixed/Implemented In:
Sentry Crash Report:

Description adamsurette 2026-01-25 12:31:24 UTC 
Rendering a video using the libx265 codec and then uploading to YouTube causes skips in video playback.
When viewed on YouTube, every 30 seconds or so, the video appears to skip forwards, though the audio continues as normal. Eventually, the video skips backwards and is in sync with the audio. This problem is not seen when playing the rendered video locally.

This problem is not present when rendering the video using the libx264 codec and then uploading to YouTube.

See the following Reddit thread for other users with the same problem. Note, this is not my post.
https://www.reddit.com/r/kdenlive/comments/1mmmb3h/i_dont_know_why_my_youtube_videos_have_this/