[Edi]

Marverni is also affected by another, even nastier bug, which is that commanders randomly drop all their squads into the province garrison, so you need to check every army every turn to see that all the troops are in fact where they are supposed to be. It's easy to lose a lot of valuable mages and commanders due to this. I have never seen it affect any other nation.

Several people in the beta group confirmed this issue, but Johan was unable to duplicate that one too. It has been around since version 3.00. It looks to be caused by something exotic, just as the vanishing scales bug was, and that took literally years to squish because its cause was so obscure.