Vehicle Rigging Problem

I have had this problem for so long now, but have never been able to fix it. I use the Chaosvehicle plugin for UE5, and It works amazingly until I try to switch the meshes of existing blueprints (to make it easier to make many cars in the world).

I want to put the mesh of a car that I downloaded, (I did all of the necessary things to make the vehicle work) and I now want to use its mesh on the Sportscar that UE5 provides. I use the parent-child system to do this. But when I test the game, the car does this! (see image). I have no idea what the source of the problem is, I tried everything. (Maybe the 3d model itself or Blender?) Also, the wheels go all wonky.

image