There is a bug in the ascension leveling. It says there is 0/0 exp needed to level up. I have tried restarting the game and desktop neither fixed the issue.
2 Likes
Usually logging out then back in, or restarting the game, should work.
Maybe wait a bit after completely exiting from the game and the blizzard client, to ensure the server get some time to fix its mess.
edit: added about logging out and in being enough without restarting the whole game
I unfortunately have this issue now aswell. cant seem to fix it and has been happening now for about 12 hours 
lvl 99 and says im max level with 0/0 for the xp
This is a 3 year old bug.