A few minutes into playing after updating, my sim gets a call from her cousin to say that the cousin is now in a relationship with her own brother. I went into the other family to check and sure enou...
Ideas
Partnered Sims turn into siblings
robynamos
1 month agoSeasoned Rookie
After the February 3, 2026 update, my married sims who share a son are now listed as sisters in the new family tree. I tried the cheat to remove the sibling relationship but it did not update the family tree. I was able to get rid of the sisters label in the relationship profile but the family tree won't change. I tried editing it in CAS but the dropdown menu won't move away from sisters.
roenais
1 month agoSeasoned Newcomer
Can confirm this has also happened on my sim's family tree, as you can see Suzu is my founder's wife, they have children together, yet she's now being marked as her sister via an unknown parent. Interestingly Suzu has a sister, which lends credence to the idea that it could be sister-in-law causing the bug, however further down the family tree I have both straight and M/M couples who have in-laws that are not being marked as siblings, so it doesn't seem to be consistent.
Edit: to add info to this; I am playing with mods/cc, I have not tested it without them as I'm hesitant to load the save without mods. I do not believe I have any mods that affect family relationships.
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