Guild Wars 2

I am a full bunker specced level 80 mesmer, fully traited for all sorts of projectile reflects. However, fighting large groups of the archer skeletons is nearly impossible for me, because of a very strange bug that keeps happening constantly. When I fight these archers, I lay down projectile reflects constantly, and I think they might be why this is happening. My character constantly interrupts motions to try to shoot an imaginary bow, with a ~2 second channel time. This will happen while moving, during actions, even during invulnerability frames such as blurred frenzy. Combined with the ability of the archers to do chain knockbacks, this completely breaks any ability to solo these mobs that could exist. Has anyone else experienced this strange bug?