[RL] Sims changes Dynasties/Constant message after loading

Me too ,  I'm a PC player using only MCCC (and the issue also occurs with MCCC disabled). After the May 12th patch, a new feature that automatically adds blood relatives to Dynasties has become overly aggressive and is causing major problems.

Issue:
Every time I load a household or enter/exit CAS, the game performs a dynasty membership check. All blood relatives are then automatically added to a dynasty, even if they are already the head of their own separate dynasty.In my case, a Sim who was the head of his own dynasty was forcibly added to his father’s dynasty (which he had never belonged to before). Because of this:

• He can no longer open the control panel for his own dynasty.
• His own dynasty still shows him as the head to other members.
• Even if he leaves the father’s dynasty manually, or the father’s leader expels him, the changes are reverted upon reloading the household.
• The game arbitrarily decides which dynasty he belongs to, overriding player actions.

This creates a loop where Sims with connections to multiple dynasties keep being reassigned.

Workarounds found:

• Make sure both parents belong to the same dynasty.
• Have the troubled Sim create a completely new dynasty right after leaving, then recruit previous members to the new one.

In short, the automatic dynasty joining system added in the May 12 patch is too powerful and breaks dynasty management for legacy families with complex trees.

Platform: PC
Mods: Only MCCC (issue persists without it)
Save type: Long-time existing save