quitting apps does not work anymore

quitting apps does not work anymore (cmd + Q)

Big Sur 11.0.1
BetterTouchTool version: 3.501
MacBook Pro (Retina, 15-inch, Mid 2014)

can you elaborate? Quitting via a BTT tigger?

Maybe you accidentally added a cmd+q shortcut to BTT?

thanks for your help, Andres. yes, a trackpad action triggered cmd+Q.
strange. don't think i did. does it work on your device?

I just checked and it is working fine here:

Does your setup also look like this?

strange - now it works. can't really imagine that it had to do with reinstalling macos, but now it works. danke dir, andreas!