Sims from contact list disappear

Product: The Sims 4
Platform: PC
Which language are you playing the game in? English
How often does the bug occur? All the time
What is your current game version number? 1.99.264.1030
What expansions, game packs, and stuff packs do you have installed? All packs
Steps: How can we find the bug ourselves? When you make an acquaintance and don't talk to them for some time, they'll disappear from the contact list
What happens when the bug occurs? My sim's acquaintances disappear from the contact list after the update. I have to introduce myself to them again.
What do you expect to see? I want my sim's acquaintances to stay in the contact list even if I don't talk to them for a few days.
Have you installed any customization with the game, e.g. Custom Content or Mods? Yes
Did this issue appear after a specific patch or change you made to your system? It started happening after the newest patch, 1.99.264.1030