Unity FPS can't climb the Stair

Unity Engine
1

Hi.

I used Unity 5.5.3 Standard Assets (RigidBodyFPSController) for my FPS Game. In my scene there is one stair that player move to up slowly and move to down normally. also when I move down mouse to see the ground and try to move up the stair, it can’t move up and stuck. i used default setting for RigidBodyFPSController.
also I test it both Box Collider and Mesh Collider.
also I attached my stair FBX model for better help. anyone know why do this happen? and how can fix it?

Thanks.

3213985–246069–stair.zip (18 KB)

2

i should use FPSController without Rigidbody for fix this problem.