OnePlus announced it was ready to roll the stable version of its Android 12-based software upgrade for the 9 and 9 Pro not long ago. Now, however, the OEM has stated it is necessary to "suspend" this process, thanks to user reports of multiple bugs and issues found in this official OS version, which its software team now needs to fix.
https://www.notebookcheck.net/OnePlus-put-the-brakes-on-the-Android-12-update-for-its-9-series-flagships.584448.0.html