Hmm, I'm not sure why that would happen...

Couple of bugs:

-Void Burst says it deals 11-17 damage, but when cast it does around 4-7 damage

-The momentum perk that allows you to move after a melee attack only activates if you start with 2 action points. If you spend one action point then use your melee attack, momentum won't activate.

This might be more relevant to the Archmage RPGO Specializations mod of yours though, so I'll post it there too.