Bug Unity Recorder stopped working - freezes editor entirely - tried almost everything

Unity recorder suddenly cannot record MP4s, and the other video format modes work but return errors (see picture 1). I have uninstalled the recorder package, and reinstalled it, and installed other versions of the package (and uninstalled/reinstalled them) and I've tried changing the directory where the files are saved. Absolutely nothing seems to work. The recorder is permanently broken it seems. It does not show any frames recorded. It totally and instantly crashes the editor. Upon restart of the editor sometimes I get the console-line errors shown that is referring to a 0 kb file that the Recorder tried to write to (see picture 2). It seems similar to this post:

https://www.reddit.com/r/Unity3D/comments/y2fw8d/unity_recorder_wont_recordprocess_frames/

Thoughts on how to unbreak the Recorder package? I think it actually records very good quality video, so this is a real loss.

I'm using recorder 2.5.7 (but have tried others) and Unity 2020.3.12f1 in Windows 10. Thanks.

 

@unitybru any possible suggestions on this? Thank you!

 

Thank you so much but I do not use any Unity videoplayer resources. The error about reading the windows media file was included in my post only as a clue to what may be causing the Recorder to stop working. I have changed the tag back to Recorder!

Edit: I have added back the videoplayer tag in addition to the recorder tag in case there is some dependency between them that I don't understand.

 

@JunL_Unity any possible thoughts on this? Thank you so much!!