I just experienced GSX to freeze/total stutters in KTEX Orbx Teluride. I had to switch GSX off.. Never seen that before.
I have FS Global Ultimate - Next Generation , Vector, Global, HD airport Textures, open LC North America, S & N California, South Alaska. Flight beam KDEN and Aerosoft Aspen KASE which are the closet payware airports.
P3D V3.4
All the best
Jens Michlas
The picture show a screenshot during stutters and the game memory in task manager that shows its not an OOM.