Auto-brightness broken and goes to max
I have a 27" iMac 2017 and since I updated to Catalina whenever I restart the computer the display goes to max brightness. This is driving me crazy as I am a photographer and have calibrated my display and it is important that the display keep a consistent brightness. And max is too bright.
I have unchecked the "Automatically adjust brightness" in display preferences. How can I get it to hold the brightness??