OP you are not crazy. I was just able to reproduce it with my phone! On the main homepage while i would rotate the screen back and forth it was changing my communities from sub to local and then all of a sudden it logged me out! Not only did it log me out, it took a good 5 tries or so to get logged back in!
I took video of it happening but stopped it before realizing i got logged out.
I’m using a Galaxy S10 with the .34 alpha release.
My car has been broken into 3 times in the last year. I wish they would steal it already.