@puzzlezaddict At first I would like to apologize for using not the right phrases as in the game, but I play game in my language so I'd try to translate it in the best way.
So at first, I made up a family of 3 sims, two brothers and the wife of one of them. Brothers are magicians. Then one of them moved to a different house with his husband- and have 3 kids now, also magicians. The previous family has 4 kids, magicians too. Each of both of the families has about 3-5 popularity stars.
Recently I have discovered that I can download templates of houses and this kind of stuff from the internet and put it into my sims. I have downloaded plenty of items, families, houses etc. One of the families above lives in the downloaded house.
Today I have installed two more EP, University life and Island Paradise. The first thing I did this morning was that according to new EP's, sims offered me to move my family to a brand new town, so I agreed and we were moving. Then the new city appeared and... it was said to 'choose a house or to make new sims'. There was no option to move my family to a new house, my family was gone. Then I refused to save the game.
So I find myself in the same position as before, reloaded my game right before attempting of moving. I signed my sim to university, but while appearing in university city, again, no option for picking up a house to live in, I should choose a house to play or to make new sims. So again, the same position, refused to save the game, reload it again. I had an idea, to save my sims with their houses to the library and then to pick a new world and place them there. But it wasn't possible, again. Yeah, the first attempt of saving went really weird cause it saved only half of the family, of total 6 sims and 2 pets only 3 sims and 2 pets were saved, but why not the rest?
I have tried to separate them, move one of them to another family, move to another house. But every attempt of saving my family was unsuccessful. Only one successful thing is that i was able to save my houses of both families when it was empty.
I deleted cache files as u mentioned, I tried to copy my world, I tried to get rid of celebrity stars, all items in inventory but I am still not able to save them in my library.
Of course I tried another family from saved town, I mean completely different family, not my own, and I have tried to save them to library, it worked. Moving, university or saving - worked.
But no error appeared, it just seem to be saved to library, but its not there. If it says whats wrong, it would be much easier.
IDK, please help me to figure it out, I hope it's possible. Thank you.
PS: I would have texted you privately but i am not able.