LCMan wrote:
I have the following problem on an that has popup that needs to be clicked but I couldn't find it anywhere so i can't close the application or work on it.
I ended up forcing the app to close. In this scenario, what can I do?
https://discussions.apple.com/content/attachment/73f18f02-26f0-44fd-80ff-5431cd4fb36b
[Re-Titled by Moderator]
What Application?
Command Tab should show you running applications—can you switch to it using the interface (HUD heads up display)
can you drag the window larger?
what about (3 or) 4 finger drag down on the track pad for exposé view?

is it in the Dock? Control click on the Dock icon for some options...
no insight—
A SafeBoot Start up your Mac in safe mode - Apple Support will sort many anomalies
Login and test. Reboot as normal and test.