Damn, I know exactly what's happening. The native version of transformVoxel is not indexing the faces correctly. I'll post a fix later today
Thank you for such a quick response man!Sorry for not mentioning it earlier, but I just want to say what an awesome tool this is! Fantastic job, its really perfect for engineers to be able to quickly prototype something without fiddling around in magicavoxel or blender.
There, I pushed the last update. It should work properly now
