This has no bug.
Note: Minify the command to avoid issues :)
Bence6's Herobrine Chestplate
Bence6's Super Enchanted Bow
Bence6's Super Enchanted Diamond Helmet
New Omega Boots
Pet ENDER DRAGON!!!!!
Wither Storm Boss in ONE COMMAND
HEROBRINE COMMAND
HEROBRINE BOSS BATTLE (See YouTube for details)