[ARCHIVED] Sims forget already existing relationships

Product: The Sims 4
Platform:PC
Which language are you playing the game in? English
How often does the bug occur? Every time (100%)
What is your current game version number? PC 1.63.134.1020
What expansions, game packs, and stuff packs do you have installed? All but Kitchen Stuff
Steps: How can we find the bug ourselves? Meet NPC Sims, build a relationship. A few in game days later the relationship bar is still the same but you have to reintroduce yourself, and the relationship seems to reset back to an aquaintance status even though they're marked as friend/good friend.
What happens when the bug occurs? All the NPC Sims i've met forget my sim. in some cases the relationship bar stays where it was, in some it goes back to nothing. this is the case with all sims except for the "master maker" from the Tinker family. Not sure if related but also have random sims my sim doesn't know coming to the house, knoocking on doors (the way only Vlad used to do) and if i speak to them when they return the next time i have to reintroduce again.
What do you expect to see? have the relationships stay at the level they should be.
Have you installed any customization with the game, e.g. Custom Content or Mods? Never used.
Did this issue appear after a specific patch or change you made to your system? Yes
Please describe the patch or change you made. Eco living/ patch to 3rd f June patch

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Not sure if related but also have random sims my sim doesn't know coming to the house, knoocking on doors (the way only Vlad used to do) and if i speak to them when they return the next time i have to reintroduce again.