I’ve made a mesh with blender and when i import it as an fbx the mesh is distorted and i’m not sure how to go about fixing it, thanks for the help in advance

That looks… amazing? Lol First things first. To prevent clipping you never use pants and skin - when the pants are on the skin goes off (Modular models replace each other). Second thing. Yes whatever you are doing in engine is using rotated bones. Your tigh and calves are oppositely rotated. Th…