Constant buffering with 4k movies despite hardware acceleration and no subtitles

[OttoKerner]

I just found an interesting thread. It might help with some of your files (at least those which are using the MKV container)

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A wild guess on my part, but do those files have a ctts atom? I started the link at that post due to it being the point at which the problem with all those files was found. Your mention of all the problem files being 265 - and I had to re-acquire and repair about 1400 of them ultimately made me think of that. It wouldn’t take much to make me believe Plex wouldn’t generate a VPT for a file without a ctts atom. Check a few things, confirm or rule out, then disregard if necessary. It was wort…