Hey,
Today me and a friend completeted a Void Crusade on Hardcore-Mode, we opened every Chest but the Objective (Open Void-Chests 0/4) would not update. After some "googling", I found some Posts which mentioned negative Keys in their inventory. I noticed my Inventory said -17. So, I completed a Void Crusade on my own. I again could open every Chest but had to abandon the Mission to get out. Now its 2 "failed" Void Crusades and my Inventory shows -26 Empyrean Keys.

Does anybody know a way to fix the negative -26 Keys? As they seem to be the Problem.

Thanks in advance.