Ydalir Collection Achievement Bugged? Edit: Fixed

Working on the Ydalir Colletion Achievement and everything is marked off except "On Wings of Gold: Bronze". Before starting the Ydalir achievement I had completed "On Wings of Gold" getting Gold, as well as the achievement related to it. I have tried redoing the Adventure again but it still isn't completing.

Edit: Just did it again this reset and it worked. No idea, but not going to complain.