[storus]

My 128GB RAM M3 Max had logic board replaced 3x and I am still getting beachball alongside screen falling apart in blocks... There is something wrong with their firmware, especially when you are switching between multiple users often.

[PaulHoule]

I think user switching is part of the problem in my case.

[jjtheblunt]

one other thing to check is if you installed any kernel extensions...inside Apple engineering, folks with kernel extensions could get bizarre errors since the quality of them could screw up stability with all sorts of symptoms.

kextstat | grep -v com.apple

would show anything _maybe_ troublesome, but not guaranteed related.

[storus]

In my case no kernel extensions. Every few days the computer freezes with a beachball and/or screen starts falling apart in large blocks randomly shuffling around the screen and I need to power it off. The first logicboard also added a bunch of pink noise in a few clusters all over the screen. Whenever I got close to freeze my power charging beeps were getting more and more frequent up to around 1 beep per 3 seconds with USB charger in (the beep when you insert power adapter into USB port).

[jjtheblunt]

definitely unusual, sounds like hardware issue (as someone else mentioned)