Mesmer Sound Bugs (1/29/2015)
I noticed some of these myself.
I also noticed on Tuesday that the mesmer’s Mantra (of Pain) charge sound also had varying distortions, sometimes slightly higher or lower pitch. This seems to have been undone in the Wednesday patch, but it did sound really cool at the time…
I also noticed this however it only happens for me when I am in combat. I wasn’t able to reproduce the bug while out of combat. It is even more apparent when you are making multiple players invisible.