Game Mechanics: XP gain halting at random

[Wizerud]

Ok this is a rare bug but it just happened to me again. Just killing HG's and griffons in NK, all mobs are light blue or dark blue. With the 25% xp bonus it seemed like I was gaining just under 1% per kill. All of a sudden the xp gain stops. I must have killed 5 or 6 mobs and my xp % did not go up at all. Like I said I have noticed this before and just logging out of the game fixes the issue, it's just annoying because unless you're watching your xp bar after every kill it might take as long as I did to notice it.