Today I had 40 colleagues in a WT VC - no-one could get screensharing to work - the menu would appear, I could see my three screens, could select/clear the two top checkboxes, but when clicking on the actual screens to share, nothing happened - see photo. Ended up having to shift everyone to Pexip to run the call. No indicated issues on Webex platform.
Has anyone seen this issue? Yes, have raised a TAC case. I'm on the latest version on PC, as were others.
UPDATE 1549BST 4/1 colleague in Germany reports German Cisco admins discussing this as widespread there.