MS Teams does not work anymore after big system update

Hi all, I know that MS Teams is not part of the standard repositories, but maybe someone has encountered the same problem I'm having. I need MS Teams for my work, so I added Microsoft's repo and installed it. It has been working flawlessly for some months now. Yesterday I got over 3000 packages to update. Everything went smoothly - apparently - but today I find that both Teams and Insync (a commercial Google Drive client) fail to start. Well, not exactly: they do start, but they don't work, and they keep producing core dumps until I kill them. Is anybody experiencing this problem? Hints? I'm on openSuse Tumbleweed 20210921. Thank you in advance Cris