Not sure if it is a bug.
We set particle amount at 6000 per sprayer (rate not total count. increased particles in lucid settings.
we also added delete particles after 60 frames. If we increase particles rate to 8000 we will run out of particles halfway in out simulation. (particles will just stop coming out) In lucid particle preview window it says 180,000 particles so delete event does work but we still ran out of particles halfway. If particle rate is bellow 6000 it works fine We use 3ds max 2014