8k maps issue

Can’t seem to generate eroded 8k maps, the 4k ones look fine with erosion and everything, but when I switch to 8k, the only thing that gets regenarated is my photoshop drown Heightmap at 8k with no erosion FX.

Its not a tiled build btw,
Running WM2.15 PRO 64bit on a Windows 7 (64bit) with 8gb Ram.

Any ideas?
Thanks,

hmm. Sometimes erosion scales oddly, but I think what is happening here is a bug in 2.15 that occurred in certain situations that has since been fixed in 2.2. Download WM 2.2 and see if it fixes this!

http://update.world-machine.com