Changing mesh messes up slotting

I'm trying to modify the photo object so that for the "frameless" option there wasn't any kind of frame. I imported a new mesh to the one geometry state I want to change and it looks as it is supposed to in the game. The problems appear elsewhere though. I didn't change anything in the file apart from meshes of that geometry state, but now I can't place the photo on any surface it would normaly snap to (tables, shelves etc) - only on walls (and the collage and digital frames). It looks like changing the mesh messed with slot type set? Additionaly, the color choices of the frame got messed up too and while all the usual options show up in the pie menu in "add frame" they all result in a black, white or dark brown frame. I think all the issues are connected to things that were added in the patch for Moschino Stuff, but I can't figure out why is there such a corellation. 

Seems like photos are no standard objects and I'll understand if this can't be done through a simple tuning mod, but I figured it's worth asking if anyone has an idea why is it happening.