MeetRana708 , via OnePlus 9 Pro , Jan 21, 2022 : Ever since i upgraded my OnePlus 9pro to Android 10. There's number of bugs I'm familiar with. System is crashing randomly, The screen goes to the black (than I've to force to reboot) The notification bugging, Face id recognition problem, Drawer optimization issue, And this notification panel . Atleast do what is needful ..
Caomhin , via OnePlus 9 Pro , Jan 21, 2022 : Most are known bugs in OOS 12. You may want to take the advice from XDA and backup your phone data, then do a full Erase All Data factory reset to refresh your current installation of OOS on the phone. Factory resetting the OnePlus 9/9 Pro will improve your OxygenOS 12 experience https://www.xda-developers.com/factory-reset-oneplus-9-series-improve-experience-oxygenos-12/amp/
Nipu_1998 , via OnePlus 9 Pro , Jan 21, 2022 : Try updating to the latest update C.44 It is said to fix some issues.
Kenwayz , via OnePlus 9 Pro , Jan 29, 2022 : Alarm also not shows the full screen mode. When some notification comes like whatsapp the all chats dropdown will freez.