Gooddaytoya!
40 Cal
I was holding the lock in my hand looking hard at it trying to find anything that might be wrong like I've done several times before. Then it hit me: what if some of those tiny screws are loose? I found a butter knife with a thin enough end that it could turn some of those screws. Sure enough, one tiny screw was backed out 3/4 of a turn. I cinched it up, reaffixed the lock and trigger assembly, and now it cocks and fires perfectly, set trigger and all. Victory at last, this sucker works now!