Hello
I found one bug I think. In this exampel https://www.babylonjs-playground.com/#KNE0O#4
I found this example o https://doc.babylonjs.com/babylon101/raycasts
ray.show(scene, new BABYLON.Color3(1, 1, 0.1));
When I tried this code, which was prepared in exampel then babylon.js stop worked.
Sorry for my poor english.