All 5 of our early version Surface Hub v1 took an update on 3/31 and all cannot join teams meetings now. It’s just a circle showing that it is trying to join forever.
I believe they all picked up 20H2 in mid March and were working fine with hosting and joining meetings.
From desktop teams, the surface hubs appear as offline.
we did cloud recovery on one to 20h2 and it still exhibits the same problems.