Guild Wars 2

This guy is bugged
Before last boss in CoE submarine path
Missing out on 20 crystals
Wasting time is frustrating
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the pillars get glitched as the where no matter what angle/speed/whatever he runs into the orange pillars, it doesnt knock him down or remove his shield, boss cant be killed….time was wasted`
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love the dungeon n love the concept of the boss, but this is straight up frustrating

spent 2 hours trying to unglitch it, still leaving with no reward