You don't receive any XP by killing enemies in old town areas after reaching LVL44.

[Purifysoul]

Basically once you hit lvl44 you don't gain any XP from killing enemies in old town areas, I doubt that it's ment to be like that.
Hope it will be fixed asap!
You also stop receiving PVE KILLS on lvl44.

[Merchmerger]

Wow that’s wierd