You might the following:
I would suggest trying to install the drivers from scratch again as sometimes things just corrupt.
Have the driver downloaded from AMD
Download and run DDU from wagnardsoft dot com from safe mode with Internet unplugged or wifi off.
Restart with Internet still disconnected.
Install the AMD driver but don't pick express install. Choose the"Factory Reset" option.
See if that helps.
I that doesn't help repeat the same process above but install a previous driver that worked for you and report the issue to AMD:
In Radeon Settings there is a Bug Report tool too you can submit the issue or
You can contact AMD support here: https://www.amd.com/en/support/contact-email-form
Good Luck!