I’ve eliminated MAIW from my problem and will start looking elsewhere. I cut all scenery addons, UT traffic and then ran P3D. MAIW ran wonderfully at KLUF and KLSV. I then added my afcad files and checked again. No problems. That leaves the world of Orbx and a some other airport.

I appreciate your ...

I truly hate to bother you but I have an unusual problem in that traffic is missing at Luke and Nellis AFBs
All other airports in the area - KDMA,KYUM - are full of aircraft as are local airports used in flight plans There are no KLUF aircraft anywhere. What I have tried:
* checked for possible FS9 ...