Socket Interactor hover mesh not respecting prefab hierarchy

The interactable (generator model) has the main chassis of the generator with the wheels as children. The wheels' pivots are centered locally to them. When using the Socket Interactor, the hover mesh of the generator is not arranged properly (see image). The wheels appear to be moved to the center of the object on their X axis, but not on their Up axis. Any ideas how to fix this aside from re-creating object as a single mesh (i.e. attach the wheels to the main body)?

 

Done

 

Did you find a solution? My hover meshes are also messed up in their transforms although my objects are single meshes.

 

Not really. I attached everything to create a single mesh and that worked.