After a few weeks my RoPieee device will enter some kind of boot loop. Only way to stop it is to pull the plug at which point it will be good for a few more weeks until it decides to do it again. I usually have to re-enable the Spockfish extension after the hard reboot as well.
I’ve noticed then same thing happening. to mine. Just thought it was my flaky power till you said you have the same issue.
I’m using this power supply:
with a 3B+ and the official 7" LCD.