unarmed mcmmo bug

[destroyingpotato]

1. Your IGN:destroyingpotato
2. How to recreate the glitch/bug: level your unarmed skill to lvl 157
3. Explain the glitch/bug: the disarm sub-skill which is very important doesn't show up and the iron arm style's damage does not increase past 4.
4. Screenshot(s)/other Evidence:

as you can see here my iron arm style does +4 dmg while it should increase by 1 every 50 lvls from 3 so it should be 6 and the importand disarm subskill is not there.