Stripped-Down Mod Folder

[alpaca]

Ok after remembering about the no_brigands and no_pirates hidden resources and putting them on the map, the reason for the crashes on the stripped down map are brigands or pirate spawns.
It ran perfectly fine for 150 turns (after which I cancelled) with the hidden resources, whereas without it it'd usually crash within 30 turns.
The question is now why exactly this happens.
On the map I have only English_Rebels, and they are described properly in descr_rebel_factions. Both faction creator and faction in descr_regions are england
The only thing that could screw it up is pirates or brigands spawning on invalid tiles, however I have no idea what could make a tile invalid. You know the stripped map only has a tiny island with uniform height, and the crashes occured on a much smaller testmap than the 510*510 one, too.
I'm not sure if I'll put any more time into this right now as there's more productive stuff to do than wondering about why brigands crash my game.

Edit: By the way, I'll release an update for the stripped map that'll not only have a stripped map but everything stripped (factions, units, cultures, etc.) as a base for TC-style mods