I'm very new to Houdini and haven't really rendered anything using Houdini before. I'm trying to render a simple tire burning using pyrofx and after 19m the percent render still reads N/A. I'm using mantra to render and the output resolution is 1280x720, 140 frames. The pixel samples are set 4x4 to eliminate some of the noise. I feel as though my computer should be able to handle this or at least not take an eternity. Is there something I am missing? Any help would be greatly appreciated.