When I have Sydney YSSY from Fly Tampa installed and Sydney City Scape installed, I get frequent CTD either when trying to load a flight or soon after taking off (within a couple of minutes). Didn't have this issue before the latest updates from Asobo so assuming something is not working with these products together for some reason. On a side note, I noticed that with Fly Tampa Sydney installed, I had started getting trees growing on the runway. I have had these products for many months with no issues in the past. Both purchased from Orbx Direct. I have uninstalled YSSY and rolled back to the MSFS default airport and seems to be running without crashes so far. By the way, the crashes appear to be confined to the Sydney area although I haven't done extensive testing elsewhere.
My system is Intel i7 9700k, 32G Ram, SSD with plenty of space, Nvidia RTX 2080 Super
Regards
D