Hi, just got a new ICS MX5 P today and after charging up the battery tried it out, only that when I fired the gun is occasionally doing two shots with one trigger pull on semi auto. With the mag in as well it misfeeds and bbs drop out of the barrel, yet it feeds fine upside down. I've tried adjusting the motor height a bit and also the hop for the misfeeds but nothing has changed. Any ideas? Thanks