Hey I’m unsure where the issue is, if you set Simulate Physics to true it should bounce off any surface it acts upon. but I been looking at your BP and have some ideas.
in your bp you got a physics root that has no collision? maybe I’m just missing the model. question is if you want your pawn to have physics or not, but since you checked to simulate physics I assume so. all I did was adding a capsule collision to the pawn and enabled simulate physics and set the collision to block all. if I now take it and smash it against a wall he bounces off it like it should be.
but there could be other variables which do not allow that.