Notice: Trion has announced that the 10hr Summerfest Promo Adventures have been disabled due to a reward issue. Don’t spend your Aventurine yet! Will be back next week.
Also, Archonix mentioned that unlike previous world events, 6-star 10hr Summerfest Promo Adventures will no longer guarantee the limited event currency or lockboxes. Instead it will be a chance drop (no clue what % that is):
While they no longer reward as often as Fae Yule and Autumn Harvest, 6 star promo rewards should still have a chance to award Friendship Bracelets and Promo Boxes.
There is a bug in how those rewards were being generated, so we’ve taken them offline to get them fixed. They’ll return next week.