Well just when I thought everything was working. I just finished a flight DFW-CLT then took a break. When I came back to restart P3D it loads the splash screen, loads scenery build up to 100% then the screen disappears. Task manager is showing CPU usage at exactly 32% and memory at 280mb flat with no change.
I uninstalled all FSDT products plus addon manager/Coautl and the sim starts up fine now.
I also tried reinstalling only CLT and it reverts back to the exact same issue. I don't know why this is suddenly happening. The sim was stable before, especially now that this is a clean install.
I don't have any error codes to provide now since the sim doesn't actually crash, it only gets hung.