Not sure what you mean by "break confirmation". The lightspeed effect doesn't show up in the web build due to limitations of Godot's web rendering, but if you download the native build it's there.
I meant this image, I don't see a "visual confirmation" when I successfully loop an asteroid.
That's not a screenshot. That's the cover image.
I know, I meant that I thought that it would appear like that in-game when you circle an asteroid.