I had two mice connected, actually. But I was only trying to do something with one of them. I tried to click and drag, but It didn’t help to change the course. I can try it with the controller tomorrow if it might help.
Interesting, it may be reading inputs from both mice then. At least that's my best guess. The turning is based off mouse movement so it might be reading both mice locations and spinning because of that. I'll have to see if there is a way I can account for that on the game's side.