mirage archer and crossbow skill

it's been like two week without playing and i log in for helping a friend

i descover the mirage archer with a crossbow skill shoot one time and relaod again and again without shotting another round

i tested this bug on one projectil charge skill like hight velocity or cascad shot

the combo mirage archer and cascad shot was perfect for my build mercs tactician

but now its garbage tier to use this skills combo and its a verry serious problem for me