[RL] Sims in Dynasty suddenly despise each other

Did you never use mods or removed them ? Please add a thread tag for your mod usage.

Does this happen with another dynasty as well or just your own ?

I noticed a similar thing in my game. Every time you edit your dynasty's settings, or just open the settings menu and click accept without changing anything, there's a huge relationship loss between the dynasty head and every member who's not in the same household as the head. 

Example: I added Agnes Crumplebottom to the Goth dynasty but she's not part of the Goth household. I opened the dynasty menu a couple of times and now Mortimer hates her 100%. The relationships between other family members did not change.

This has been happening to me too, all dynasty members who were all at minimum friends with the head suddenly go into the red, then when i added dynasty perks they go to full red despise him. I got him to stand down and the heir is now the Head and they all suddenly hate him too.

I am having the same issue, I created a new dynasty and everytime I added a sim, the family members automatically demised the head.

No mods.  Have the same issue on Xbox series s.  Happened after editing anything related dynasty.

Removed mods. Haven’t tried premade dynasties yet. The issue happens every time I close the dynasty window.

I had the same issue when I created a new dynasty (it didn't happen with the default ones). Even though their ideals were against mean interactions, they regularly argued and destroyed romantic relationships that had previously been at their peak. I already reported it two days ago, but the bug wasn't related to the base game. It was after I founded the dynasty. Unfortunately, I had to reload my backup save, because even with the autonomy disabled, mean interactions persisted.
I play on Ea App, no mods/cc.

Okay I did more testing.  Looks like it happens if you have a dynasty member who lives outside of your world (or at the moment you marry someone who lives in another world.) 

Same world I made changes without issue. When someone moves to another world even if moving back any changes to dynasty triggers a crisis. Resulting in large relationship drop.

Once it happens the first time there's no stopping a new crisis from occuring or worsening when changes are made.