Replacement assembly missing home button ribbon cable

I have an iPhone 6S model A1688, and recently got an LCD/digitizer replacement. I made sure I got the correct one from ifixit, on the box it says iPhone 6S, compatibility A1633 and A1688, and started my repair. Everything was going smooth until I realized that my replacement assembly did not come with a home button ribbon cable attached! Not only that, it seems, as I started to inspect my part more thoroughly, that the attached plastic border may also be wrong or different than what is supposed to be because the metal plate does not line up with all the correct spots to keep it in place. In fact one spot is missing: the spot near the top of the plate, next to where the camera assembly and all those components go. I have pictures that hopefully will show my situation a little better.

Here is my original assembly with the home button ribbon

Notice the replacement is missing the ribbon, and it was not damaged or ripped off

Original, with spot to screw in metal plate

Replacement, with the spot missing

Please help me figure this out, or do I have to go out and get another replacement assembly? This one was was bought this way, and is incorrect.