Charged creepers with an invisibility potion effect keep their charged armor blue aura effect, which is awesome by the way and please don't remove that. But because they're technically invisible, they render behind every other entity, which includes tile entities like chests!

Steps to Reproduce:
1. Set this command in a command block to summon an invisible charged creeper.

summon Creeper ~ ~1 ~ {powered:1b,ActiveEffects:[{ShowParticles:0b,Duration:2147478597,Id:14b}]}

2. Place chests or other mobs nearby and look at the invisible creeper while in front of the chests or mobs.