Hi, have you had chance to take a look?
Just tried again and it's still crashing in the same place, the last line of the render. Terragens memory usage was only around 1GB and overall memory usage about 60% so something with the memory allocation is going wrong it seems.
I tried to capture the error message that came up but unfortunately the error box was transparent this time, but the time before I remembered it said something about memory or buckets or both.