Console application freezes on mouse click

Question

I have a very simple C# console application that displays some text and loops waiting for input until the escape key is pressed or the timeout period is served.

Answer 1

The issue was solved using Hans' comment above.

Sounds to me that you've activated the console window's Mark and Paste commands somehow. Normally activate through the system menu (Alt + Space, Edit, Mark/Paste). That doesn't have anything to do with this code of course.

Apparently, Quick Edit Mode was set in the console defaults (Alt + Space, Defaults, Options, Edit Options, Quick Edit Mode) for some reason. Unchecking that resolved the issue.