Dreadbow Charm broken?

I have been using dreadbow for quite some time now and felt that mobs are still attacking me despite charming them and seeing threads about kisso's charm being broken , i tried testing dreadbow's charm in elite mauso, and i observed that mobs still target and attack me despite them being under the charm proc, tested on 2 mobs both charmed (still attacks me), tested on larger group where most are charmed and some were not, charmed mobs still attack me and charmed mobs is not attacking those that were not charmed.