Items unslotting themselves

I have a few cc items that are made to hold a slotted item but upon leaving the household and returning these items remove themselves and put them selves in household inventory. It kinda reminds me of the "delete" bug like when you're building and go to put a wallpaper or wall and anything slotted gets removed, only this is not happening because of build edits its simply doing it when i leave household. I am hoping its a simple issue in s4s that i can change to fix it? It seems to be limited to one or two items as this is not an issue for most households. I thought originally it was an issue for a very specific house but I just made a new save and that same object is the culprit. I might bring it to the creators attention but I am not overly hopeful I'll get any response about it since its an older item of theirs, made earlier this year I think. Can anyone wager a guess to what would cause mysterious unslotting? Also as an aside, bb.moveobjects does not need to be applied for this item to allow a deco item to slot on it.