Problem:
City portal from inside the map modifier (boss room) teleports players out quickly after clicking it. It is a problem when I sometimes misclicked it as it appeared suddenly due to running away from boss (as the boss died). Thus, I missed the loots - reds or purples.

Suggested solution:
Simple. Do like in the Expedition. Pop up a question before going out of the dungeon. "Are you sure you want to exit the dungeon? Yes? No?"

Bug report:
It seems that when I scroll a mouse over the buff / debuff icons on the UI, the description still lingers even after the buff/debuff icons are gone (even after the fight ends, even after going back to the city). I have to relog / restart the game to make it gone.