I have tested with all the other explosives, This is just an issue with gunpowder in pills. You may be able to stack 2+ of those pills on tile and you will get 2+ booms from that tile. The usual hard limit is 1 explosion per tile with chain breaker bombs. hence, my round with Iansdoor/(Vents-Hot-Air) deleted all objects of type /obj/effect/particle_effect/expl_particles (3640 objects deleted) that was around chemistry was all the pills exploding mostly on the same set of tiles.
I have tested with all the other explosives, This is just an issue with gunpowder in pills. You may be able to stack 2+ of those pills on tile and you will get 2+ booms from that tile. The usual hard limit is 1 explosion per tile with chain breaker bombs. hence, my round with Iansdoor/(Vents-Hot-Air) deleted all objects of type /obj/effect/particle_effect/expl_particles (3640 objects deleted) that was around chemistry was all the pills exploding mostly on the same set of tiles.