Ever since i bought the gun ive noticed something that bothers me a little bit. If i pull the trigger back really slowly on DA the trigger will travel all the way back and the hammer will cock back but it wont release. I've tryed this countlessly and everytime it happens. The hammer will release if i shake the gun slightly. I've never dry fired the gun and its always kept in perfect firing order. I tryed it at the range aswell and the same thing happens. The trigger will go all the way back but wont release the hammer. Has this happend to anyone else?