Android 12 Oxygen 12 updated for OnePlus 9 Pro has MAJOR BUGS & ISSUES!!!!!!

Also having this exact issue. I've figured out how to work around the brightness issue by leaving my phone locked until it corrects itself but it still does it constantly and all that helps is me not having to restart my phone every 20 minutes. Sometimes I cannot even unlock my phone and it has been a major issue recently when I've needed my gps and my phone was so bugged it wasn't opening. 

Some update ran a couple weeks ago on  my OnePlus Nord, now the alarm clock works one time out of 10, I can no longer find a way to do a USB file transfer from my PC to the phone ("usb preferences" no longer exists). Congratulations, this update really HOSED us. Congratulations to the QA that let this trainwreck of a so-called update get out to customers. LAME. FIX IT!!!!!

Okay so everyone is having the same issues but has T-Mobile responded or given a solution seeing that it was a forced update to which an option wasn't given?? 

no one in here to either acknowledge nor respond to something like this...the site is primarily peer to peer assistance only with a handful of admins and moderators to keep the site in order only...

Having all the same issues, would be great if they would respond or acknowledge it at All. 

Hardware version: 22

Versión de software: LE2127_11_C.18

Baseband version: Q_V1_P14

Kernel: 5.4.147-qgki-gaa2b12955fb7

1) Fingerprint stopped working. They did a like bootloader restart and I was able to setup again, but then it stopped working once more. Fingerprint area is all white, and knows my finger is there but can't/doesn't read it. 

2) Screen flickers off and on occasionally.

3) Brightness adjusts randomly but is often locked at 100%.

4) Can't watch full screen videos on Netflix or YouTube, it's just black or flickers.

5) Refresh rate drops, or it is slowing down, can't tell which. Chrome, app drawer, telegram, photos, all have this issue that I know of. But may not be limited to certain apps. 

How the hell does something this rickety pass through QA and into a forced upgrade??

My fingerprint sensor is completely borked. Tried deleting it and re-adding it it's just a white oval and no amount of pressing it for any amount of time works.

I don't want to have to roll back and wipe my device! Absurd 

EDIT:

After another reboot I'm now able to set my fingerprint again. Thankfully 

Also having this issue. Phone will go to maximum brightness until I restart my phone, user input has no control. Phone will lag horribly and sometimes certain parts(or entirely, when trying to enter lock screen password [no fingerprint], which happens way more often) of the screen will turn black and user input is still received. When recording screen of these issues, it does not get registered when look at the videos again. It's horribly often. It often makes the phone unusable until I restart it.

Edit: Area for fingerprint is whited out. A pure white circle with no animation.

After the forced update to LE2117_11_C.18 over the weekend, I have experienced much of the listed issues. my fingerprint scanner no longer works, I experience random reboots, most of the time my screen crawls or stops responding all together, and I can no longer adjust screen brightness (its stuck at maximum brightness). Such a shame to happen to a Overplus phone, I've been a user since the Overplus 5 and would had never though such bad quality control would befall a once user centric company.

All issues present in all versions of the Android 12 firmware for all OnePlus devices.  The code base merger with Oppo that will be abandoned with Android 13 will be the fix.  Until then, use the MSM Tool to rollback to Android 11 and disable automatic updates.  It will wipe your device!  There is a  rollback package that will also wipe your device, but it is much less reliable for some reason so using the MSM Tool will achieve the cleanest out of the box experience.