@Jenni, only the garrison had buffs on it, but wasn’t owned by the other server that the player I targeted was from. However, their server did have a stake on hills so their guild may have had a claim on that keep.
I noticed other players from the same server, same guild, without the Art of War buffs on them so it may likely be a timed delay. I searched for a similar occurrence of buffs remaining on players when they’re not close to a fortification, and found it might be related to the supply buff remaining on players when they leave a camp, for instance.
