Mine seems to be having a similar problem. My title says “Tier : 2/ dungeons” and hasn’t progressed at all for me, even after doing 2 runs of Citadel of Flame and 3 of Ascalonian Catacombs today. I’m assuming the bar is supposed to progress once any path is completed, but that doesn’t seem to be the case here.
Any information about this would be smashing. I’m not particularly worried about it, just a bit puzzled about its current state.
Edit: never mind, it’s progressed now, though I still don’t know what the exact criteria are for it to progress.