Something is wrong with XP.
Here is an example (made today):
XP made on Castilla lvl 110 (w/ vitality + tersi + exalted 2 + overhit) - 339% bonus: 2,186,685,480,672 !
Related % performed: 0,346% !
Yesterday - 226% (before update):
Made ~7 tril XP -> 1.10%
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Moreover, was like 4 hours to make 0,5% killing same mobs I was yesterday and doing like 8x more !
It´s almost impossible to exp with this rate.
Have you increased the total amount needed to level up per levels?
P.S.: I noticed same with a mentee char during COAL Mines. Total % was like 2%, again 8x less than before.