Shiguri
This Canny is related, but slightly different: https://feedback.vrchat.com/bug-reports/p/1123-if-vertical-sync-on-nvidia-control-panel-set-to-on-will-not-play-2nd-video
Just set VSync to "Fast" in the NVIDIA control panel global settings, then go to a media world like LSMedia and try to play videos. This occcurs in both VR and Desktop.
As the other canny says it can happen in on 2nd video in a playlist, however I've also had it happen on first videos when joining an instance before (literally just entering an instance and crashing immediately).
It is also worth noting that I reproduced this on both my old Windows installation, and a fresh install that I just finished yesterday. This crash was part of the reason why I formatted, assuming that surely reinstalling Windows would fix the issue, but when it continued to occur even after a fresh Windows install that indicated to me that something else is going on.
I'm including a video of me reproducing the issue in LSMedia, and attached is my output log with extended logging enabled (I used the farming isekai anime for example because I knew it occurs on that one).
https://www.youtube.com/watch?v=T9MsZdDvD_I
I find it interesting that OBS also seemed to struggle with capturing VRChat in my display capture (see all the stuttering) until I switched VSync to On and then it was smooth as butter... hmm...
I understand that there likely isn't anything you can do other than forward the issue to AVPro/Unity/NVIDIA, but I figured I'd make a canny to ensure it's documented anyway.
For now people should probably avoid using this setting with VRChat.
Thanks.