I'm an idiot.
Thanks for the help, Chris. After much digging around in my scenery folders I found another copy of the traffic file in an active folder. No idea when or why I put it there. Problem solved.
Thanks again,
Dave

Hi, first time post from a long term lurker.
I have been playing around with some AI for an old scenery I've been playing around with for while. I created a traffic file and got my AI flying no problem. Thinking they looked good I added some more aircraft and flights to the original file and ended ...