After upgrading to Big Sur 11.3.1, the active window suddenly goes to the background, even if I'm typing in it. Very frustrating.
New development – when this happens the terminal app opens for no apparent reason.
Thanks for your replies! I restarted my Mac 3 or 4 times and the problem seems to have gone away. I will use the etrecheck report to get rid of some of the "junk" though.
Thanks again!
Jim
Which applications exhibit this behavior?
Does this occur for a different user, e.g., Guest ? Set up users, guests, and groups on Mac - Apple Support
Does this occur after starting up in Safe Mode?
Consider the possibility of a third party software conflict. EtreCheck can be used to investigate what is installed. Give it Full Disk Access. You can post the report here. Someone might spot something.
You have a lot of third party stuff installed. I would bet it is some of that causing the problem, but isolating the culprit might be tedious. Have a look at the etrecheck report under: Kernel Extensions, Launch Agents, Launch Daemons, User Launch Agents, User Login Items, and you will see the spectrum of possible places where the problem originates.
Here's my Etrecheck report
Active Window suddenly goes to background after update to 11.3.1
