I'm unable to turn the quest in after completing it.
Lower Sanctuary Tunnels
One of the ladders in the tunnels is surrounded by two pillars making it unable to be used to climb back up.
The kobold camp, lord bunge has the same dialogue as the other named kobold the first time you speak to him.
Hopefully fixed.
Happened to me just now, when I click on the quest is just says "The puzzle has been defeated!", with no XP, with the quest still in my journal.
... hasn't reset yet. Sheesh.