In my case the problem was solved. I struggled for 2 days and tried everything but I found the only solution.
In my case, I have a caravan and the character was shaking the caravan from side to side as he walked. He even blew up the trailer.
The solution is to ignore the pawn in the collision settings in the caravan’s network. I adjusted the internal network of the caravan to block only the pawn. Problem solved. The trailer looks like a rock.
You can also add any cube component or a different mesh to the ground.