So, I have a room full of these 'Larvae' enemy prefabs. I place an Add Combatant script on it so that the enemy is recognized as a combatant, and can be attacked, etc. This is a realtime battle, and there is a Real Time Battle Area set in the scene. Everything works as normal.
However, as soon as I kill one, the rest of them disappear! The Death event (a particle prefab that spawns on the dead enemy plays) on the mob that I kill, but the rest simply disappear.
This does NOT occur if I'm using the ORK combatant spawner to spawn them. (Which we are not using so we can set individual settings on our custom AI on each mob in scene (patrol paths, etc).