[ARCHIVED] Sims autonomously do mean interactions for no reason

I've had this happen to me too since the latest patch. My sims who are married they were in a flirty mood and there relationship is full to romantic and there friendship is too and whenever they flirt toward each other or interact for some reason out of nowhere they would do a mean interaction and I'm like what the heck? This never happens with my sims before. I used to have this happen if they were in a angry mood or if they had gotten into a fight with each other before they apologize toward each other especially if the conversation was unpleasant. But I've never had them fight toward each other when they were in a good mood or flirty. I find this odd that this would be happening in my game. I hope they get this fixed.

Has the one doing the mean things got a negative sentiment to their partner?

I only had the Promote Creative Arts NAP active. I've checked for possible causes for this behaviour but as far as I can tell, I've found nothing.

Sul sul everyone!

We're investigating this issue but if people are willing to share save files with us that would actually help our team a lot!

Here's a link to the instructions on how to send save files to our team.

Thanks all and Happy Simming!

Product: The Sims 4
Platform:Sony Playstation 4
Which language are you playing the game in? English
How often does the bug occur? Often (50% - 99%)
What is your current game version number? 1.37
What expansions, game packs, and stuff packs do you have installed? All except JtB
Steps: How can we find the bug ourselves? Playing with the sims
What happens when the bug occurs? When sims chat with each other
What do you expect to see? Sims not being mean when there are no mean/evil traits or angry moodlets
Have you installed any customization with the game, e.g. Custom Content or Mods? On console - 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.

‌

Sims are being mean to each other without having the mean/evil traits or being angry. Anyone else has noticed this in their game? It’s really frustrating. I’m also playing on a haunted lot if that could be a reason??

EDIT: I have figured it out from some other simmers on here. Sentiments are actually kinda permanent (even the positive ones lol why they market sentiments as temporary feelings when they really aren't...). If a sim is angry and is mean to another sim behind your back then that can cause a sentiment between them to go unnoticed by you. Long after the sentiment expires it creates a "relationship sentiment bit" which is permanent unless removed by using debug cheats. Enter in the debug cheats and shift click on the target sim and select "remove relationship bit" and remove the negative sentiment bit. Do this to BOTH sims just in case they have had negative sentiments mutual to eachother. No mods necessary. Just debug cheats activated. 

@crinrict I don’t have any NAPs active. They’re just randomly mean with no justification. There are no bitter sentiments between the sims either. They once had bitter sentiments for each other but they’re gone now. They’re still mean to each other. These are my played sims.