Ember Fusillade Breaking Demon Form

I leveled up my ember Fusillade from 7->8 and since then it has started breaking demon form when I cast it making demon form unusable with the skill.

Before the level up I was able to freely cast ember fusillade in demon form without issues.

Ok. I played for a couple of hours and re-speced into the skill and now the problem is not happening.

The only two major changes are I have changed my weapon and added a lesser jewlers orb to ember fusillade.