ogre camp issue

Hey Everyone,

Not sure if anyone else has experienced this issue.. but after researching the necessary Wilderness tech, I built into an Ogre Camp.  I ended up getting two Ogre armies which was all nice and fine.  So I saved the game, and quit to have dinner.  When I came back to load the game, one of the whole Ogre armies I had raised just completely disappeared!

All I had left was a single Ogre (who perhaps stayed around because when he spawned, he automatically joined a passing Caravan's army).

Has anyone encountered anything similar to this?