I copied the weapon rack from Breezhome into my mod, tested it out works fine.

I then added an extra 2 holders and activators to it, tried it out all five slots work fine.

Then I copied it a few times setting them up around the perimiter of a room. | _ |

Now they all take and hold weapons but the ones on the side walls hang some weapons upside down, I can take that upside down weapon and put it on the back wall and it hangs the right way up, move it back and its upside down.

These are identical racks just some are rotated 90 degrees.