From first post:
Scrolling over campaign map:
- Not enough province/settlements on a too large map (fix : add provinces on the map/may be fixed with BI) causes CTD while scrolling the map.
- Error with the rebel faction/settlement owner and or creator (when you scroll over a given settlement)
- Some hidden resources can cause CTDs when you scroll over the region.
Don't think was mentioned specifically as point 2 there I think refers to regions file, but placing slave army that is sub_faction of a faction that isn't in descr_strat.txt causes CTD on scroll over.

(probably predictable that one and yes, I am having a bad day )