Tiny little bug, unless it is expected to work like that, but when u open the programm u need to double click on exit to close it instead of just clicking once. If u click on anything else first, then u just need to click once on exit to exit the programm.
Yes, known issue. Low on the priority list at the moment.
The exit code is trying to interact with an "Are you sure?" type box that isn't created, second click forces the exit.