Hi @John29 , thank you for posting your issue in the Zoom Community. Our Engineers have reproduced the issue you are experiencing and found a solution that will be implemented in the 5.13.5 version which will be released in the coming days.
While waiting for a fix, we have these work arounds that can resolve the issue for the time being:
Work Around 1 - Disabling video de-noise in the advanced video settings can avoid the issue.
On your Zoom App, Go to > Settings ( By clicking on the Upper right hand corner 'gear icon') Select ‘Video’ > Advanced > Uncheck ‘Optimize quality of the video | send with de-noise Work Around 2 - Roll back to Previous Zoom Version 5.12.9 (Downgrading to 5.12.9 fixes the issue) Roll back and re-install instructions for Windows First uninstall the current Zoom version (Windows) The following steps should help get the old installation cleared, and get Zoom reinstalled and working for you. Could you please run the CleanZoom application, and then restart your computer when it's finished? Once done restarting please visit this link