I'm not sure if this is a bug, but it sure seems like one.
I've completely wrapped up the quest where you have to defeat Bardylis. He was killed in one of the engagements, however, not all his Hoplites were. You have to kill 6 Hoplites -- I've killed 5, but the 6th is nowhere to be found. I've build all the watchtowers available. But the last Hoplite is not anywhere in the territory I have access to.
I'm kind of throwing up my hands here ... do i need to start a new campaign??
EDIT -- sorry, didn't see Jonan's thread which addresses this problem -- guess i'm glad to see i'm not the only one experiencing this! Hopefully a hotfix for this in the not too distant future?