Started Before Patch , Traits Dropping and Changing On It's Own

I am at a lost with this one.

this started way before the new Pack or any updates , I would often deal with upset sims and then the bored sims often and after a while I started checking them in CAS and would find some of their traits missing and today I found two more sims traits missing and both of them had traits added to them I didn't pick, like a loner trait which is confusing because I didn't pick that for them and I always upload my sims on the gallery and they are both married to each other and the screenshot at the bottom is their daughter and son who stay in totally different households then their parents.

With the strange stuff that is happening in my game it seem like someone is causing crazy stuff to happen.

My game don't have any hacks , I only have CC's in my game like hair, make-up and my own CC's I made which is just t-shirt and picture frames and that's it.

Then this happen three days ago, I found this confusing because this sim I just made him and moved him onto a empty lot with no lights or even a building and had him go on vacation while he wait to be accepted into college.