Guild Wars 2

There seems to be a probleme with the 2nd part of the “Hononary Rata Novan” achievement in tangled depths. I did all the event chain, but the 2nt part “protected Zidli” isn’t completed (i believe it’s the event where you have to protect Zidli from a golem that attacks the nearest opponent).
This prevents me from getting the mastery point that i’m starting to really need right now.

Crashing after i kill a mob that gives xp in verdant brink (plus random crashes every ~10min in the rest of hot maps), this is getting ridiculous. Worse and worse patch after patch.