Swarming problems today?

[weaseal]

Hi all,
I just got started with my first bard last week, so far I'm really enjoying swarming. I even had my first 'perfect' (large, no hits on me) swarm last night - about 15 willowisps, which was pretty cool coming from Wizard quadding. However today I'm suddenly unable to swarm - It seems like there is some change causing mob reach to be just as far as my DoT song, making it impossible to find that 'sweet spot' where my DoT lands but they can't hit me.

Does anyone know if there was any change recently regarding any of the swarming mechanics? Or any other ideas why this could be suddenly happening? I'm not sure what's different. [You must be logged in to view images. Log in or Register.]