Black screen videos

[palteater]

Upgraded to 24.04 and now my meme video snippets (MP4) are just black. Most of them, not all. Sound works.

How do I troubleshoot this?

Ryzen 3700X, RTX3060 with nVidia's binaries.


EDIT: I just realized that those that still work are the WEBM. The MP4's are not, though. Do I need to install some decoder?

[palteater]

I should mention that VLC and "restricted extras" are installed.

I also just found that SMPlayer and mpv can play them, but VLC and "Videos" won't work.