What I want to bring focus to is how the bottom horizontal track connects to the connecting vertical track. In your screenshot example, though it's a wrong solution overall, the first jewel can still be delivered because the vertical track connects with a curve to the right. But when I played, it was not possible to get a vertical track that connects going to the right. Vertical tracks only ever come in with a curve to the left.
I don't know if this is an intended limitation, but it could make for very interesting puzzles if it's consistent. Or is there a way to change which way the tracks curve, that I missed?