I sent an email to
technical-enquiries@synaptics.com about this, but I was able to get a crash report in the Console of a process called replayd which is responsible for screen recording. I sent the log in.
I also have been able to trigger this issue at will by manually killing the replayd process from the terminal while screen sharing in Zoom.
Quitting the DisplayLink Manager software (from the system bar on my laptop screen while locked up) then reopening makes the screens start working again. I'm looking into a way to restart DisplayLink Manager in a quicker manner until we have a proper fix.
I'm also keeping up with this issue on the Zoom board here:
https://community.zoom.com/t5/Meetin...cOS/m-p/172288