Hi! I have a rookie problem. Let's see if you can help me solve it.
When smoke emission occurs, some advected particles remain frozen when they reach the highest point of the explosion
Increase the size of the gas container in case they collide with it and slow down, but it does not appear to have been repaired. If anyone has any idea.

Attached the hip file.
Greetings and thanks for your time.

Try remapping the dissipation of the smoke or turning down the life expectancy of the particles on the POP source. Or playing around with the life variance as well.