Caius Flaminius, you can have a map with only two factions so that is not the problem. I can't remember what gives a KTM without an error message (it's quite rare) next time I really will write some of this stuff down somewhere .

If no-one else comes up with suggestion, put all the changed files (including regions_and_settlement_names... from data/text) into zip folder, upload it to MegaUpload or similar and post link here. I or someone else will have a look.