GE 45600 - button changed its function by itself?

A year ago, I programmed button “2” on my 45600 to turn a light switch on and off. It worked perfectly.

Now, for some reason, when I press button “2” on, ALL of my z-wave lights turn on. When I press it off, ALL the lights turn off.

Can anyone explain why this may have happened, and what I can do to fix it?

Did you press the [tt]Scene[/tt] button before pressing the [tt]2[/tt] button (to put the remote into scene mode)?

That seems to have fixed it. Thanks! I completely forgot about that…