Bending/tilting floor when drive. Help stop it

First, I’m quite new to unreal engine but I like the experience so far. I have successfully created my vehicle and can drive it. However, my problem is with my floor. It seems to tilt over and over in the direction of the moving car. Looks like the floor has some pivot or something so that when you drive forward it bends over. Please help me proceed with this project by showing me how to stop the floor from behaving like that. I have attached a snapshot from what I’m experiencing. Thankd!

I think it’s highly unlikely that the floor is the one pivoting. Check the physics on your car.