Hi Kelly, I'm pretty sure I'm seeing what you're seeing. I suspect Robertie has his board set to 3d mode. If you look closely, there is a subtle difference between what 5 checkers look like and what 4 checkers look like.
There are 5 checkers on the 19 point and 4 checkers on the 17 point. Count the curved white lines you can see on the orange checkers. There is something similar going on with the White checkers. There are 5 checkers on the 6 point.
I agree it's bad design.