>>368326823
Then I know exactly your problem now I had that before.

The center of your mesh is not at the center of each object.
You'd want to go into blender and just select all the meshes and hit Ctrl+A and choose Apply all transforms. This would lock everything to be the same relative transforms from each other and should in theory fix it.

I may be getting it reversed though so if that doesn't work try going into the contextual menu (spacebar for 2.7X keybinds) and place "Origin to Geometry for each mesh"