I've noticed that releasing the Flourish line Charge attack right in an enemy's face makes the first two stabs go through the enemy without damaging them, and only the final swipe actually hits the enemy. This is quite annoying. Is this a bug, or intentional for whatever silly reason? Has it always been this way? I'm just lucky the first two hits not doing anything haven't gotten me killed yet.
I only just recently crafted myself a Grand Flourish just to see how it compares the BTB, but if the charge attack is unreliable like this then I might as well stick with the BTB's shotgun blast and save myself the 800 energy upgrading to the FF would cost me. Besides, the shotgun blast is similar to the DA in that it makes you jump back and knocks enemies away, which I'm quite used to and fond of.
Yes, this is a very annoying bug.
I had the same problem using my flamberge on Polyps. (don't ask...)