Quest A Captive Flame (34), no option [Group] tag but also not posible to enter dungeon solo
You can see solo enterance option here (link with timing):
for unknown reason, i dont have same option and askin peoples in chat, everyone says it only group dungeon. I belive stream was 1.8 (now is 2.0), so solo option that should help newcommers was deleted? Its logical downgrade =\