Incorrect scaling of collision mesh on Skeletal Mesh

After looking around, I noticed that the collision meshes of my skeletal meshs are incorrectly scaled to the model, they are quite a bit larger. Any idea why?

I also have another issue where my grenade collision bounds arent being registered at all when its thrown, its a static mesh and just floats about the ground (but still reacts to physics).

The issue is probably that your object’s root is the collision/mesh with collision. Cut it in the editor, and then paste it as a child of the newly created default root and it should respond to scaling properly.