Costant CTD during AI specific turn

I'm not sure if this is the correct section of the forum for this post, i apologize in adavance
As the title says, i'm currently experiencing a costant ctd on a specific AI turn. It's not the first time, i have already dropped the previous game for the same reason. I'm starting to suspect it is something related to the mods (which are vox populi with eui and ethnic units, nothing else.)
No graphic tweaks or directX switch solved the issue, and i would avoid using the IGE (as someone suggests) because it breaks immersion and eventually doesn't guarantee any stability to the game.
Can anyone tell me how should i proceed?