The reason your A.I. Traffic went on Strike, is most likely because, somewhere / somehow you've Injected Flight Simulator 2004 A.I. Traffic into your FSX, and when that happens, it kills ALL A.I. Traffic - --------} "ALL" A.I. Traffic !!!
Yup - I found out the same way, then thru research found out FSX users , "CAN NOT" inject FS 2004 AI Flight plans into FSX !
Upon doing so will totally KILL ALL AI Traffic.
All it takes is 1 2004 AI Traffic file from somebodys scenery and Poof, there goes your AI Traffic.
there was a utility to locate only 2004 AI Traffic files in FSX and delete it / them, but I can't remember where or what it was
Scenery Developers please quit putting FS 2004 AI Flight plans into your FSX scenery, it won't work, wasn't designed to work.
either use AI FSX Traffic or none at all in your add on sceneries, too many problems otherwise !