Hi Gary,
Ive also started working on a green-screen project and have been experiencing exactly the same constantly recurring problem with After Effects. Ive tried setting the program back to default settinsg as instructed by some thread that i read online, but to no avail. A fix is no where to be found and my frustrations are hitting the roof.
Maybe there’s another way around it, I don’t know.
Hope we can find a solution to this problem asap.
My specs:
Windows 10
Nvidia GTX 1060
16GB RAM(optimal requirement)
i5 3.5GHz