Try it like 5 times and see what happens.
haxasaur
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.
https://developer.android.com/about/versions/14/behavior-changes-all#kill-own-background-processes
No more apps to kill all the background processes and free up memory.
You can do that on desktop with Imagus extension, but it's not out for Android. You just hover the mouse over the image and works with many websites.
I did not touch the cache and its not happening again.