I believe this may still be a glitch when the chunk loads or something.
I have a similar lava lighting system in 0.15.6 and the chunk almost always loads with 1 or 2 blazes spawned regardless of whether the lighting is left on.
I am able to replicate in 0.15.6, I know my lava lighting is on, I remove all blazes, leave the area, and come back and have more blazes. Maybe the chunk is just glitched for me.
Michael Ravens
I believe this may still be a glitch when the chunk loads or something.
I have a similar lava lighting system in 0.15.6 and the chunk almost always loads with 1 or 2 blazes spawned regardless of whether the lighting is left on.
I am able to replicate in 0.15.6, I know my lava lighting is on, I remove all blazes, leave the area, and come back and have more blazes. Maybe the chunk is just glitched for me.