Regarding the bug, upon completing what I could of the map, three tiles remained that would highlight if I moused over them, but could not be selected and didn't have any graphics indicating a challenge to face there. At first I presumed these being empty was just the result of randomization, i.e. that some lands could generate with no challenge and that was fine, but upon subsequent play-throughs, I've noticed it was the same lands that were again highlightable but not selectable (though most everything else had randomized). Perhaps there is some problem generating content for certain tiles? If it helps, these are the village three tiles northeast of the starting castle, the shire to its immediate west, and the mountain on the northern edge of the northeast corner of the map.