It wasn’t just you - the entire Malware Research Group (which is only a few at the moment) was affected because of the permissions on those boards weren’t enabled. I had to go to each one to apply the same permissions as regular members.
As for why your stars went down to 1 - my speculation is that when a member’s lacks access to a board, their post count also goes down. Post count is what determines the level of stars. (or it used to…I see your have 67 posts presently, yet you have 5 stars ???)