That's clearly the same problem, with UT2 overflowing Simconnect with commands.
We ARE investigating the chance to make the ground using the same method (so, fully 3d, with shaders, etc) but not dependent of Simconnect, but we are still working on it, because it would require some hacking, but it might be possible that the "hacked" version might end up being more reliable than the "official" Simconnect.