build mode furniture and decorations dissappear

I have been having the problem of Items that randomly dissappear. It's always the same itmes, and the are always in my family inventory in build mode. Even tho I keep placing them back they dissappear again.
I have had this problem in 2 save games, on multiple lots. It's always different items per home. In one home some decorations from a bedroom dissapear, in another home it's a chair, desk decorations and shelves. It is verry annoying since I can't do anything about this except placing them back every time.