Sorry. I should have noted that this thread is posted because I
only wanted the devs know there are still CTD problems.
I didn't think I could ever provide enough information, well, since I was too lazy to de-ironman my game...
Anyway, here's the required (no not really) things:
DLCs: everything but Charlemagne.
Mods: No.
Mode: Iroman.
Gfxpacks: everything in the "DLC collection" on steam. Nothing outside that pack.
Other description: the CTD problem is quite deterministic (always triggers on the same date). I thought it was triggered by my battle starting but I was wrong: it will happen no matter what I do.