Maintenance for the week of April 15:
• [COMPLETE] ESO Store and Account System for maintenance – April 16, 8:00AM EDT (12:00 UTC) - 6:00PM EDT (22:00 UTC)
I was playing Crypt of Hearts I when I killed the Twins. But instead of finishing the dungeon, the dungeon started the Reins fight again. I had to beat them a second time to get the win.