AddForceAtLocation requires a physics simulating component as input, it won’t work on anything else. The location is in world space, so should be easy to debug.
What “GetTransform - Component” does is crawls over the hierarchy of components till it gets to the first physics simulating component and then calculates final transform backwards. This does fails sometimes if root component is not physics body. Like that bottom MMTGetTransform - Comp has “self” as input value which won’t going to work correctly, instead it should be physics simulating component or a child of one.