The axle that the two levers pivot on is not one piece. That means that there is a certain amount of independent movement possible.
My left lever is tight and won't move at all without starting the decocking stroke. The right lever won't wiggle side to side, but has a little bit of play.
If I hold the left lever with my thumb so it won't move, the right lever can be wiggled up and down maybe 1-2 mm (something like a sixteenth of an inch or less).
If it wiggles a lot more than that, you might want to have it looked at.
Good shooting,
John