Passion - Males eventually start using Female animations and vice versa?

[ambereyes20]

I've already: disabled the usage of invalid positions, disabled female strapons, reset both sims' passion settings entirely, opened CAS in their nude outfit to make sure the genitals all match, made sure their gender preference is straight in NRAAS, they are also married. After some time, my game just always swaps the gendered animations & the females just always take on the male role even without strapons enabled, regardless of which sim initiates it. This is a SIM-SPECIFIC issue I've noticed and I've only been able to get rid of it by rolling back saves.

 

EDIT/WORKAROUND: (janky/ I'd still like to know how to fix it otherwise?) The only way I've been able to fix this albeit a bit unreliably is to have the MALE sim initiate solo passion on an object where ONLY male solo anims pop up, then switch control to the female sim, click on him, and select 'join'

Edited May 9 by ambereyes20
Temporary fix found