Game culling favorite households

@CircuitD Is neighborhood move out turned off for your played households (that should only move them out though, not delete to my knowledge) ?

Did you load a backup and test without mods to see if it happens again ?

Could you please edit your post and add the following info to your post.

Product: The Sims 4
Platform:
Which language are you playing the game in? 
How often does the bug occur? 
What is your current game version number? 
What expansions, game packs, and stuff packs do you have installed? 
Steps: How can we find the bug ourselves? 
What happens when the bug occurs? 
What do you expect to see? 
Have you installed any customization with the game, e.g. Custom Content or Mods?
Did this issue appear after a specific patch or change you made to your system? 

The bug template is currently working on/off but it helps if you are not prompted for the template while editing, please answer the questions anyways.