I just updated my S21 Ultra to One UI 4 and have a few issues:
1.) Pull down menu doesn't function properly. I can pull down the menu itself but when I press the various buttons, no response. No Bluetooth, no wifi, no airplane mode- no nothing. I literally have to open the full settings menu to access any of those things.
2.) My Bluetooth is disconnecting from my Samsung Soundbar often.
3.) When I'm typing and I misspell something, the suggestion box is filled with about 200 characters of jumbled letters and numbers with no actual words.
This new UI 4 is fire :fire: I love the aesthetic, it just needs some tweaks ASAP!
try it in safe mode and see if those issues are still occurring,
submit an error report if you think it's a software glitch
Samsung Members app > + Button > Error report