Yes, for example number created: 84, incomplete: 84. nWhen I keep on increasing the steps, following message wil appear number tracked = 84, incomplete = 80, incomplete_parallel = 4 Please consider reducing rpvar dpm/parallel/loop-factor to reduce the number of incomplete tracks in parallel. Current value is 10Should I do as it says? nHere's the mass Flux ReportnnOn side notes, I am referencing/initializing/computing my simulation from gas inlet, not water inlet, not all zones. For solutions methods, it's SIMPLE, Green-Gauss Node based and all others set to second order. I had also change one setting for the EOS for air in gas domain, density: from constant to incompressible-ideal-gas. Not sure if any of these makes a difference.n