I just completed a Mythic Dungeon and got no progression in my Quest

[Dezminion]

I too needed to run 5 to get 4 done.
As a side note, we ran 6 dungeons yday and the guild perk thingy only accepted 2 for some odd reason -.-

[Wilderness]

I completed my 4 last with no problem. Picked up the quest, ran Everbloom 4 times just killing the last boss, and it was completed. My tracker went up by 1 each time.

I think I'd read a blue post or a news post or something that there was an issue for people who had picked up the quest before yesterday morning so if you did, drop it and get it again and it should work correctly.

[Daan]

These "do 4 of something"-Quests are buggy since weeks. It's very annoying.