Hello,
On my character Trommel, I have completed this quest twice and each time I eventually get reset back to the step "Go to Caer Diogel in the Shrouded Isles and talk to Meb 0/1". I have killed the final boss 2 and maybe the next day I log into the game on this toon the epic armor is removed from my inventory and I am reverted back to the "Talk to Meb" part of the quest. Is it possible to remove this bug and grant me completion of the quest?
