Zoom forced an update on me today. Since then it fails to recognise my video camera and asks me to pick a different one from settings. Neither camera nor settings have changed since the update. It works perfectly fine in Zoom and Skype. The camera is a Logitech HD Pro Webcam C920. Any suggestions on how to get Zoom to do its job again?

I use zoom with Dell WH3022 USB headset.

I clearly remember that about a year or so ago it was perfectly possible to use Zoom "Test Audio" feature during an ongoing meeting. Even when the microphone on my side was muted (!) the "Test Audio" feature would still "hear" the mike, i.e. it would hear me saying "Test test test one two three" and properly play back the recorded test sample. This made perfect sense, since it allowed me to test audio settings (especially the microphone) without disturbing the meeting.

However, after one of Zoom updates this functionality suddenly got broken. Now when the microphone is muted, the second portion of "Test Audio" no longer works: it does not hear me speaking. And if I unmute the mike for testing purposes "Test Audio" will hear me, but everyone in the entire meeting will also hear me saying my test-test-tests into the mike. This is, of course, weird and unacceptable.

So, what happened? Why did this (originally well-designed) feature suddenly got crippled like that? Am I missing some setting, perhaps? 

I recently updated the Zoom Windows app to the latest version. Now, when I try to run Zoom, I get an errormessage that the Zoom call download is not associated with the app. According to the "Setting" app, there is an association. I've uninstalled and reinstalled the Zoom app, but I still have the problem. What's wrong, and how do I fix it? (Zoom works fine on my Android tablet.)

can i go back to previous version? since the update my cam freeze all the time, huge lagg and it crashes a lot HUGE CPU KILLER i didnt had this problem with previous version, it is so annoying and frustrating. is there a way to go back? I tried right click the app restore previous version but there are no previouus versions available. Please help im going nutts here

I got my zoom from https://zoom.us/client/6.3.5.6065/zoom_x86_64.pkg.tar.xz on NixOS (x86_64 linux).

After installation it idles at 100% CPU for a while, without starting the GUI, then crashes. I cannot downgrade to the last working version, which was 6.2.11-5069 , because that no longer allows SSO-login (see picture).

Many NixOS users have the same experience. What do we do?