ytarchive doesn't start muxing after it finishes downloading

[SigmaTheFox]

I set up ytarchive to monitor a channel for live streams, and every time a stream, let it be public or members only ends, the download stops presumably because it finished downloading, but fails to start the muxing process.
I enabled debug to see what's going on, and the only message it spams indefinitely is

DEBUG: video1: Error with fragment 11634: unexpected EOF
DEBUG: audio1: Error with fragment 11634: unexpected EOF
Video Fragments: 11634; Audio Fragments: 11634; Max Fragments: 11633; Max Sequence: 11633; Total Downloaded: 3.92GiB

Canceling and merging manually works just fine, and the final video is complete as well.
In case it's useful, I'm running ytarchive --retry-frags 0 --vp9 -t --lookalike-chars -o OUTPUT_DIR --cookies PATH_TO_COOKIES --monitor-channel CHANNEL_URL best on a raspberrypi 4 with 64bit raspbian installed

[SigmaTheFox]

Anyone know how to fix this or what might be causing it? I have also tried setting --retry-frags to a value other than 0, in case that's what's breaking it, but nothing