Had a bit of a complex way to get this to work. The collider mesh had to be on top of the pin in the same blend file. In the outliner the collider had to be named the same as the pin mesh but with the prefix UCX_ . After exporting as an FBX file to UE4 (auto generate collision has to be turned off) the importer recognizes the prefix and uses the collider mesh as the collision.
If anyone knows a more simple way of going about this, I would love to know.
