lighter2 double sided transparent texture

[Phorem]

First WOW spam!
And the login is a little odd. The redirect has http.com or something before the actual url. Almost like a password harvester.

To the question...
When running lighter2 with my map, it comes out fine when I don't export the transparent meshes (they are actually leaves in a tree) as double sided from Blender.
If the meshes are exported as 'double sided' (transparent), lighter2 produces some crazy results. The shadow of the leaves are all over the map in patches that seem to fall in obviously, the shadowed areas that lighter2 is computing.

Is this unique to my build or is this known?

- Linux x86_64 OpenSuse 12.2
- CS (no cel) 2.1 (recent pull from dev branch)
- Blender 2.63 with the 2.1 CS exporter from the dev branch.
- Basic transparent textures from Gimp from leaves