Yesterday we started using Yammer to have a tool for communicationg now that many users are working from home. We har been playing with Yammer for years, so some users have been active and later removed. It looks like we have a problem re-adding users. In the Yammer SPO webpart, it says "Oops something went wrong. Can't load conversations. Refresh the page or try again later." and when accessing Yammer directly, it starts a loop loogong in, logging out, logging in etc.
So it seem to me that the solution would be to somehow 100% wipe any remnants of a user from Yammer. Is that possible?