AI in COOP Missions

[bw_wolverine]

I'm having a little difficulty with some missions and I was wondering if someone has an answer or at least an explanation:

I'm using Banks' co-op scripts to run co-op missions along side friendly AI flights.

I've noticed that sometimes the AI flights will take off from their airfield and then just circle around endlessly as if they can't find their first waypoint. This sometimes happens when they come in for the final waypoint as well to land. They'll just circle the airfield.

Is this a waypoint issue? Is the AI flight waiting for player aircraft to 'join the formation' before they start their waypoint parsing?