Married sims are tagged as siblings..

Since the last update (the one before 2/17/2026) and the newest pack, royalty and legacy, I created a new family with 3 generations living in the same house. When looking at the family tree, the 1st generation is married and has no problems. the second generation has been changed to brother and sister instead of spouses, even though it still says they have 3 children together. The third generation is teens and younger and there are no issues.

When it comes to the second generation, there are no romantic interactions available because of them being siblings. I have tried to change it in CAS, and shift clicking the sims, “cheat relationship” and “Removing relationship bit” but it always either reverts back to siblings or does not change.

I have not had this issue with any other of my saves.