The problem is that for some reason EA thought it would be a good idea to create 3 different sized deco slots, small, medium, and large ... but the problem with that thought process is that even tho items look small enough or can be sized down to be the appropriate size for the shelf, if that item is categorized as a medium or large deco item, it simply will not snap to it.
I seriously don't understand why they did this, especially considering that they implemented the resize option. Previous game versions one 1 slot size, either an object would snap to a slot or it wouldn't. Pretty simple.
