Guild Wars 2

Hello!

I joined a group about halfway through path 3 of COF and was with them until the end. I did not receive Dungeon Master credit towards the COF path achievement. I’ve VERY sure it’s the path I was missing. Is there some hidden requirement for the achievement or could there possibly be a completion bug on this path?

I got several chests during the dungeon as well as the final chest and the daily chest.