Video freezes on Monterey Beta 4 (21A5294g)

[cduguet]

I'm having this problem, where every video on the web freezes, but the audio keeps going. This happens on YouTube, where it shows a loading circle (and image freezes), and Vimeo. In both, the audio runs normally, though.
This happened to me in all Chromium based browser and Firefox, but not in Safari.

After restarting the computer, the problem is gone. I'm suspecting the problem arises after sleep.

Is anybody experiencing the same issue?

UPDATE: I tried deactivating hardware acceleration on the browser, and restarting the browser, to no avail. I'm wondering where should I start looking for a solution. Is Silverlight still being used on macOS or and I completely outdated?

 

[fisherking]

i don't use youtube often, but happening here as well (beta 5). video speeds up, freezes.. but music plays through correctly. ugh

EDIT: actually, some videos play fine, some don't. just reporting it!

 

[adonis3k]

Im getting this now on 12.0.1 (21A559) Youtube video is playing, mac freezes but audio still going then seems to "wake up" after afew seconds! Annoying AF!