My tanks refused to rotate when I did not also turn the forward/reverse movement on. It took me a while to figure out apparently the IntendTurnRight function didn’t provide enough traction for the tanks to overcome the friction of the tank tracks. When I turned this down they started behaving (more) properly.
Unfortunately now they appear to be gliding along an ice-skating rink.
Friction apparently is a tough nut to implement correctly. I was hoping UE was a bit more stable with it’s physics compared to Unity.