One faction in the mod is suffering a plague of general defections. Just about every test I run, they drop one or two (out of only 3 starting generals) within the first few turns. I've tried giving these generals max loyalty using traits but this has no effect - the loyalty stat of the general has no impact on how likely the general is to defect, the defections are just as like for max loyalty generals and generals with 0 loyalty. This is only affecting one faction as far as I can tell.
This particular faction has its leader and heir starting off the map. I've seen other threads saying that when the leader has low authority, it makes generals more likely to rebel and I can attest to this from my own experience. I suppose that if the leader is off the map entirely, then their authority stat is taken to be zero and since, apparently, this stat is the only thing keeping generals from defecting, they will start defecting at absurd rates. But... the leader of the Norway faction starts off the map in the Britannia campaign and yet there is no plague of defections. What gives? Is it possible that the heir's authority stat takes over and keeps the generals in line? Putting the heir on the map won't work in my case as both leader and heir absolutely must start off the map.
TLDR: What did they do in Britannia to prevent Norway's generals from defecting left and right while their faction leader is off the map?