[MC-117493] Execute Command broken.

So when i try this command block chain

1(Repeating): /entitydata @e[type=area_effect_cloud]{Radius:0.25f,DurationOnUse:0,Invulnerable:1b,Particle:"hugeexplosion",ReapplicationDelay:20,RadiusPerTick:-0.05f,RadiusOnUse:0f}

2: /testfor @e[type=area_effect_cloud]

3: /execute @e[type=area_effect_cloud] ~ ~ ~ /playsound minecraft:entity.generic.explode ambient @a ~ ~ ~ 2 0.74

comparator to next command block

4: /execute @e[type=creeper] ~ ~ ~ /playsound minecraft:entity.generic.explode ambient @a ~ ~ ~ 2 0.44

repeater to next command block

5: /execute @e[type=area_effect_cloud] ~ ~ ~ /fill ~-4 ~-4 ~-4 ~4 ~4 ~4 minecraft:air 0 replace minecraft:glass

6: /kill @e[type=area_effect_cloud]

for some reason All relative coordinates are being relative to the command block, instead of the entities I specified.
before and after the commands executed images are below.
EDIT: one last thing my world's RandomTickSpeed is set to 60000 so I can grow grass fast.(Don't Know If This Matters)