My sim info says his husband is now his brother...

I noticed my sims wouldn't romance each other anymore and went to the info panel to see that they are marked as brothers now....  but still also tagged as married in the info screen and in CAS.

One of the sims came from the gallery from cupids corner and I've also been having a visual glitch with him where they keep reverting to their original outfit after the makeover I gave them after each load screen but in CAS it's always the outfit I made for him.

The only cheats I've used in this save is cas. fulleditmode  (They had a twins and I could handle it so I deleted one of babies...)