I had the same problem and was using the following launch parameters:
-cpuCount=4 -exThreads=8 -high -maxMem=6144 -noPause -noSplash -world=empty
Removing all parameters fixed the issue for me and the MAXWELL mission now loads.
I had the same problem and was using the following launch parameters:
-cpuCount=4 -exThreads=8 -high -maxMem=6144 -noPause -noSplash -world=empty
Removing all parameters fixed the issue for me and the MAXWELL mission now loads.