The "bouncy" sulfur cube archetype's sounds play at a significantly higher volume

The sounds that a sulfur cube with the bouncy archetype are much louder than the others, specifically when performing a knockback attack. For context, I summoned three sulfur cubes with commands set to no AI with the bouncy, fast flat and regular archetypes. The knockback sound appears to also play even when not doing one on the bouncy sulfur cube, which I’ve recognized is part of the sound when hitting one, unlike other archetypes. Seems that the sounds are being stacked, causing it to be a lot louder which I’m not sure is intended. A sword is not required to replicate it.