Apple released macOS Big Sur 11.5.1 update yesterday. Apparently, there is some major security problem that was discovered in the 11.5 version of Big Sur, so Apple released an immediate fix. They released the same fix for iOS 14.7.1 and iPadOS. I have installed them all and everything seems to be working except my Carrot Weather App. Hopefully, they will release an update to fix that problem soon.