I reverted back to Catalina, took a day. Everything is fine here. Definitely a bug. Won't update to Big Sur until this is fixed.

I reverted back to Catalina. Everything is fine rn. Won't update to Big Sur until this is resolved.

Same here, it came up when I updated to 11.3.

Update: I have tried doing a SMC reset and a PRAM/NVRAM reset but did not work. Kindly help

Any updates? Facing the same problem.