HEVC Main 10 1080p Stuttering on Roku Ultra

[JuiceWSA]

Make sure you read this thread carefully - starting here:

Example of stuttering HEVC playback on Apple TV 4K

I think I might have found the source of the issue with these files. I noticed when RARBG first started releasing these files, MKVToolNix (v44) would produce a messed up file after re-muxing, and as mentioned in this thread, version 45 no longer causes an issue, and in fact resolves it for many players. So I reviewed what they changed in MKVToolNix v45, and saw two noteworthy entries: mkvmerge: H.265/HEVC packetizer: fixed changing the NALU size length, it was using the wrong offset into the…

If you do have some of these files dated in their metadata BEFORE 5/4/2020 they will need to be repaired. Dated AFTER 5/4/2020 and they do not need repair.