Iss Enchanter superior dual mastery bug

the skill say "increases p. atk. +235, m. atk. +104, and atk. spd. +10% when using dual swords or dual blunt weapons. when you attack, may increase skill power and critical rate. also, depending on your str, may reset your skill reuse timers or double skill duration."

but m.atk. part is bugged i have same m.atk. with dual sword and bow (test was made with vesper dual sword and vesper thrower)
and the same was in pts too (test made with fists,duals,bow)