Updated to Big Sur...
Unable to get the HDMI port of my 2018 Mac Mini to work. Tried all the resets and configurations.
My 3 monitor setup:
4K HDMI
4K USB C -> DisplayPort
4K USB C -> DisplayPort
Today, the DisplayPort monitors work fine as they did yesterday on Catalina, but the HDMI port is a no go.
Help me, Obi-Wan Kenobi...