tdumont

I also had the three part crash. P3dv4.5 hotfix, Windows 7, with UTlive set at 50%/GA 10% and Radar contact. It happened at KORD just as I started pushback with GSX. Also using FSCaptain and Active Sky. I then started the same flight using the 5.15 and had no issues on one test flight KORD to CYUL. I believe I've had this error on other flights with similar traffic levels. My computer is mid-level (I think). i7 at 4ghz x 4 core/8threads and just a GTX 1660ti 6gb. I hope the extra variable with UTlive may help with your diagnosis. Again 5.15 worked for one test flight.