Missing CC

Since February I have noticed that a lot of my CC is just randomly missing from my folder. I use Sims4MM to keep my folders updated and clean.

Sometimes I download complete sets folders, where some items are then deleted, which I would never intentionally do. For example, earlier in March I downloaded Sixam's Laundromat set, and after a few weeks, I went to build with the items and the only item missing/deleted was the coin machine. I do go through every item in the folders when I download them together, and I specifically remember being excited to find the coin machine on the set for a more realistic laundromat gameplay, so I would not delete it intentionally. I had to redownload the whole thing and go through the list one by one until I got to the missing item and S4MM said it was already in my folder, but I couldn't find it either on the game or on S4MM when I typed it in or looked up the set, etc. 

I only empty my trash bin on my Mac after a month, just in case I regret deleting an item from the game and that way I can still get it back. So after I started to notice this issue, I painfully looked at the bin, item by item, and those missing items were not there, or on my Mac finder, SM44, in game, CC folder, or anything in between. 

I also posted on a different forum on here about items (cc and game base/ packs) getting deleted after several different save versions or reloads of the lot. Not sure if both issues are connected, or if they even have anything to do with the For Rent bugs, but I figured I'd mention it here in case anyone has found a correlation between them. 

At this point I have been avoiding playing, because I'm the type of player that mostly builds, so after spending weeks carefully selecting items and curating the perfect rooms and builds, items start to disappear and I can't keep up with the changes to remember what was placed where originally. 

Please please please let me know if you can help! Thank you!