Game Mechanics: Player's bashes are not interrupting mob spells.

[jbramlett]

Per the recent patch notes: Haynar: Bash can now interrupt spells, even if the stun component does not land (Credit work by Torven/Mackal).
However my guild and several other guilds have noticed that even though bashes are landing on high level mobs, like giants and dragons, the bashes are not interrupting spells. The Mobs continue to cast despite many successful bashes.