Some details:
The scene is exported to .6 test 6 from 3ds max 8 via *.3ds without the indigo exporter.
More rotation causes more of a problem (larger .tre file and eventual error).
Rotations of 90degrees don't seem to cause a problem.
The test object is about 85k tris and without rotation creates a ~65mb *.tre file.
There are no instances or grouped/linked objects in the scene.
I might try u3dreal's exporter and see if I get a better result exporting the scene via *.xml.
Has anyone encountered this problem? Any solution?
I think Indigo is awesome and would really like to see this problem fixed.

I can post more details later if needed.