Ideas
crinrict is there some info I can provide on this one to help? I provided a save file for the devs to look at, I thought that's what was needed.
I am happy to provide that file again or a different save file from the other save where this was happening regularly to me if it helps. I'd love to see this one get some traction in getting resolved since sims autonomously being mean to each other (and especially fighting) has such a negative effect on their relationships and once a sims bar is deep in the red it can be very hard to fix (and many newer players might not even know how since the easiest, non cheating, fix isn't intuitive - i.e. don't let them talk just have them spam friendly group socials like dancing together or playing chess over and over)
If you'd like to share your save file for this issue, please send me a DM with a link to your file. Instructions on sharing your saves can be found here: [INFORMATION] How to Send User Files to The Sims 4 Team