Same-sex marriage incorrectly map the relationship in next launch

There are 2 issues:

1. Same-sex marriage auto-clear itself on next launch
2. Child created from Same-sex partmers unset either of them

Issue 1:

When your M/F sim marry to same-sex sim (e.g., M-M,F-F), it will display spouse status in relationship tree. However, when I save & load them game, it clears out relationship to unmarry status (and I can do Propose > Marry instantly again, yet this also cleared out in next launch anyway)

Issue 2:

Let's say you get a child from same-sex parents (Ma-Mb,Fa-Fb). In the next launch, the child sim correctly identify person A as father/mother. Yet, person B suddenly changes to "child's aunt" AND "sister of A".

This relationship issue started since 2026's patch - iirc this never happened last year.