Huge Issue! Models Shifted and UV Unwrap only on first material on the entire object.

[MissionCyberSpace]

When using export all objects or export selected objects to export the entire 3D scene as an FBX, we run into major issues. For starters the FBX when imported into Blender has some models completely moved from their proper locations. Second the materials are all messed up, as the mesh only has the first material applied to the entire mesh, instead of certain sections having certain materials/UV Unwraps. Here's an example, of how the building has been shifted from its proper position and the lights along with it.

And here's the image that shows how it's supposed to look like (Correct), and what it looks like when exported to Blender (Incorrect).