Just did my first nightmare dungeon and no clear instrucions for selecting and leveling Glyph eg left click to select and right click to level. So I got it backwards and wasted the xp from my first nightmare dungeon cause Blizz too lazy or ignorant to add a basic effing quality of life feature ffs!
What do you mean with right click?
Just select the glyph and hit the UI button upgrade?
On the bright side, you’ll have a few thousand more of those runs to get it right!