Hi! I'm experiencing the same problem.I was on Sky Hammer Point B (mid) fighting with an Engineer, Ranger, and Necro. My Mac froze. I can hear the music, my computer doesn't say application not responding but GW2 is frozen. :/ I had to force quit so it's an automatic loss. I've been experiencing problems where my game suddenly freezes or exits by itself without me touching anything. I feel bad for my team as it wasn't fair for them. I would appreciate a patch fix for this. Thank you!