Did you make sure that you were saving the Normals channel into the PRT File?
This document should be helpful: http://software.primefocusworld.com/software/support/krakatoa/saving_particle_files_tutorial.php#Optional_Channels_Customization
Did you make sure that you were saving the Normals channel into the PRT File?
This document should be helpful: http://software.primefocusworld.com/software/support/krakatoa/saving_particle_files_tutorial.php#Optional_Channels_Customization