see from where comes the glitch in light animation (not sure if it's a _r bug for now)

[Vinc3r]

Cstfan try to animate the lamp from my tutorial, and it looks like buggy : https://codesandbox.io/s/convert-scene-add-interactions-02-eb5tt?fontsize=14&hidenavigation=1&theme=dark

(first anim' on/off working great, nexts not)

On a simple scene it looks like it's working https://codesandbox.io/s/rlaunch-y1lnp?fontsize=14&hidenavigation=1&theme=dark