Can't click within a system preferences screen
For some reason, I can't click within a system preferences screen.
So let's say I open system preferences and click on notifications. All fine, no issues. But if I want to click anything within the notifications section, it won't register the click. I can go back to the main system preferences screen and select something else, say desktop and screensaver, but then the same thing happens again, can't click anything within the screensaver screen.
If I restart it solves the problem, but then it will usually happen again within a few days. This is also the only area where this problem occurs. Any ideas?
MacBook Pro 16″, macOS 11.3