And it does help to make sure the dice are set up correctly (nothing is blocking the passageway) before rolling. I also tried to fix that by making them move at a lower speed, but of course, that doesn't fix all the problems.
Pretty good race. If you want to fixate something, you can right- click on it, go to "Geometry actions", and click "Glue to background". Similarily, if you want to change the color, right- click, go to "Appearance", and select the color you want.