[ARCHIVE] Adding wallpaper to a room removes Objects

@wetlettuceii moved to bug reporting and added

This happens all the time in my game.  Definitely reproducible, before I noticed that the furniture/wall coverings/windows/window coverings were moved to the family inventory, I was re-purchasing items to recreate the adjacent room.  Thankfully there is an indicator over the family inventory indicating it contained items, otherwise I would've been very upset.  It's not too bad of a situation but is frustrating considering the hype (well deserved -I am enamored overall with it) over the new build mode & tools.  I certainly didn't see that happening on any of the vids gurus put out prior to release.  Could've been an oversight on my part but I am happy it doesn't delete the items completely.  Also happens when resizing a room (roof understandably needs to be redone but the windows and curtains = annoyance).  Figured perhaps I was being clumsy or doing something weird.  I'm doing things according to how I saw them being done so I don't get it.  Dropping or moving a room disrupts almost everything.

@cataplasia Is this still an issue for you ?

I read the other cases before and this one is different comparatively.  When I add wallpaper in specific places some objects disappear even if they are on a different floor.  I have resized objects but only a couple and I made sure the object have no intersection with the ones being removed and the ones that disappear are nowhere near the resized objects.  I even put up windows to be sure and placing wallpaper does highlight them as though they will be deleted.  This kind of problem seems to be pretty old as even though the criteria are different, wallpaper can delete objects.  On this note, placing walls sometimes does this too.

I tested out the objects in question.  First off the objects are chess tables and chairs.  They were removed before and I replaced them.  It seems that the chairs can unlock themselves from the table on their own.  The bug seems to revolve around the object mounting lock.  Other objects that disappeared include various small objects on an accent table and the table itself.  Apparently since they become unattached they are invading the space of the base object and become deleted.  I think when placing walls it shifts the code around to dislodge them, as I do notice a slight lag sometimes when I place walls.

One last thing...when utilizing the move objects cheat, wall placement can make those objects be removed, regardless if the cheat is active or not, at random times.  The code for it seems to be off if there's that kind of trouble. 

@Vricebergike Merged with existing bug report

@Messyca Is the wall height issue still a problem for you ?

@tiptoehappiness Do you remember if you had any enlarged objects like this issue:

http://answers.ea.com/t5/The-Sims-4-Bug-Reports/Adding-wallpaper-to-a-room-removes-archway/td-p/3463421

@aeonfluxx75 @wetlettuceii Is this still an issue for you guys ?