Almost everyone on our private unmodded server gets stuck in their structures every other relog.
All they can do is to pick up their structures and crawl out of their miserable bug hole.
It’s been like this, since the update of the 21.09. I think. We also experience players dying like this because they fall from their balconies or towers while offline.
Kind regards
A player-out-of-bug-holes-summoning server admin.