Right-shift key not working correctly - centers the window instead of acting as 'shift'
Mac mini M2 - macOS Sonoma
When I press the right-shift key, the window I am working centers in my screen, other open apps in the background disappear. When hitting the right-shift key again brings the window I was working in to the font, and the background windows show again. I just wan't to use that key as a shift key nothing else. Already changed settings in Mission Control and other key-combinations, nothing works.
Any idea's to solve this?
Mac mini (M2, 2023)