Maintenance for the week of February 9:
• NA megaservers for maintenance – February 9, 4:00AM EST (9:00 UTC) - 12:00PM EST (17:00 UTC)
• EU megaservers for maintenance – February 9, 9:00 UTC (4:00AM EST) - 17:00 UTC (12:00PM EST)
Let me guess, its the breach near the dolmen near Keelsplitter. Do a few other quests, leave Summerset, then come back. Sometimes that fixes it. Otherwise, have fun running that quest again. Can't believe they haven't fixed that.