Sim Physics Voxeldata

Has anyone used this blender version with voxeldata files successfully?

I have an older version on my hard disk with raw float-data as input format which works perfectly, but since they changed the format to files that begin with four integers followed by the voxel information in floats I cannot render a voxeldata volume successfully. E.g. when i create a 10x10x10 cube, blender renders only a 5x5x5 cube but in higher dimensions I am not able to figure out what goes wrong. I contacted already the developers, but did not receive any response. Anyone hear who can help me?