Mouse constantly changing tools?!?!

Before I begin: I had this issue on Cubase 8.5 and have narrowed it down to not being my keyboard, mouse, etc that’s causing the issue. It’s also not the computer, as nothing like this happens in any other app. It is 100000% Cubase.

The problem: when I hit play, my mouse icon starts constantly cycling through tools. It stops when I hit the “1” key (my key command for returning to the pointer tool). It’s good until I hit play again, but then it starts all over.

Has anyone else dealt with this?

Seriously, no one has dealt with this? I can’t be that unlucky to have both 8.5 and 9 do this.

Like I said, I’ve trouble-shooted this down to being Cubase.

Sounds like you have a Generic Remote connected to the output of one of your midi tracks, somehow.