I put in a new trigger and did a few other little things to a Colt 1911. Put it back together and all is very good. That is until I started to put in a magazine and it wouldn't go in. If I depress the release button it slides in fine. Locks in fine and drops out fine. So why do I now have to depress the button to get a magazine in? I put in a new Magazine release and it is the same thing. Hey it only goes in one way. Looks like it fits the way it should and there are only three parts to it. I can't quite figure out what is going on. Any insight would be appreciated.