I just received my permit and my new Gen4 G26. After disassembling the main pieces, when I try to reassemble I have a question. It seems that the slide won't fully engage unless I push the trigger back to the forward position. The videos on line show (Gen 3 and below) the slide just fully engaging without having to do this, just sliding it all the way back and racking. The instructor at the PPOTH class yesterday (who has a Gen3 G26) was suprised when he tried with no success without reengaging the trigger. Has something changed in the Gen4?