MMper2
Quote: "I had already tried that but without success"
Ok, good to know.
Quote: "I suspect that FPSC then exceeds the 2GB limit when loading the level and crashes"
Quote: "Is it possible to override this 2GB limit"
Then it should not have been able to "build" the 3 levels at all... But, there is an override for the 2Gig limit.
It's only available for the test runs and editor. Open up your setup.ini file ( it's in the main directory )
Scroll down to systemmemorycapoff=0 Change the 0 (zero) to a 1 (one) This command is not available in the final build.
But then again, like I said, it wouldn't build in the first place

If your system memory cap is ON by chance, try another build with it off and test.
If it still fails, then my next suggestion would be a DX9c install. I know your running win10, you probably have DX12, but a few/some small files might
be missing

I have found in the past a reinstall of DX9c replaces the files and all is well. A DX web installer is included with Black Ice in the "tools" folder.
My games never have bugs. They just develop random features..
Lots and lots of random features...