I would give it at least 2-3 more days. And make sure to maintain humidity or the could get stuck. They won't spoil that soon, even if one has died in the shell.
Usually at that point, if I KNOW one is alive but late, I will remove it just long enough to prick a small hole in the top of the shell where the air sac is to get a look inside. If the chick has become "shrink wrapped" and has internally pipped, you'll be providing fresh oxygen so it doesn't suffocate while it negotiates it's way out of the shell.
Removing the chick from the incubator to do what I did could actually cause it to "shrink wrap" even if it is perfectly fine and just taking it's time. So know that if you do remove it to do that, there's no going back and you'll most likely have to assist it in hatching. And by that I mean applying a dab of warm water with a q-tip to the membrane around where it has pipped so that it will be wet enough for the chick to break through itself. I would leave the one that's not moving alone.
Let us know how it goes!