Stuck in 1st gear

I have never seen a 1-2 slider like that in an A833. What I mean is, that does not look like a factory slider. No matter. But then I haven't had mine out since 2004, lol.

But it looks like your brass is still indexed right, yahoo. So all you gotta do is put a slight pressure on the slider, in the direction towards which you want to go, then with a small screwdriver or similar tool, nudge them back in, one by one.