Even though it is timed correctly the deflection does not go off and you still take damage...the hit would normally cause execution but just kills you where you can be revived....
There is a giant bug that makes every ranged attack and grab not register...if you go into hidden stance (?) You can not range GB or ranged attack...they do nothing. They don't get grabbed with the ranged gb and damage from the ranged attacks do not register...it hoses us...