I've been playing Warband with the Brytenwalda mod, and decided to swap around some kings' banners to be more historically accurate/match the colors I customized for the factions. I did this just by opening the banners_*.dds files in gimp and cutandpasting the flags where I wanted them, but it seems there's more to it than that.
Here's a screenshot of my problem. I've joined the army of the king of Ulaid (green banner), but for icons it's displaying the king of Laigin's banner (mod default; for me it's the king of Mumain)
The funny thing is, this only seems to affect some of the banners - others I changed seem to work just fine. Does anyone know the cause of this issue?