Universal Control - Command and Shift not working when Mouse connected

Hi everybody,

I just configured Universal Control on my MacBook Pro 14" M1 Max and my iPad Pro 11" 3rd Gen. and everything works fine except for the fact, that as soon as I connect my Logitech MX Master 3 for Mac to my Mac, the command and shift keys are not recognized anymore. So I can not write capital letters or work with shortcuts for example. I am using the Logitech MX Keys for Mac and Logitech MX Master 3 for Mac, both with the Logi Options+ Software. And interestingly the Keyboard is not the problem, it works fine until I turn on the mouse. As soon as the mouse is turned off, all my keys are working again. Does anybody else have the same problem?

Greeting,

Felix