I played many different mmo games. And i must say im not surprised at all that you cant beat Mesmer.
Mesmer is a mage. Mage 9 out of 10 times will beat any melee class and wont allow them to get even close. You will find same thing in every mmo.
The only thing you can do is re-roll to ranged class in my opinion. They will not balance this out because they would have to either delete mesmer from this game or delete/ rework completely most of their abilities.
As the title says there is an event stuck and is impossible to complete.
Name: Defend mad Mardine’s cows from harpies while he tests his invention.
LvL: for lvl (20)
This event is around catapult that can fire you up to the Vista on top of the tower.
Due to this bug you cannot explore this Vista and cannot complete Diessa Plateau map.
