The game is cloning my sims...
You know how the game will generate new sims for you and put them in Manage Households -> Other Households ? For the a long time now, it's been generating households with the same name as households ...
Forum Discussion
Perhaps repairing the game and clearing the cache files may help.
https://sims4.crinrict.com/eng/2014/09/delete-cache-files/
I've done that. It doesn't make a difference.
