Hello,
When I create 1 component, then duplicate it and make it reverse direction. Why doesn’t the original component change when I pull the surface for example?
Share your SketchUp file so we can see what you’ve got. Commonly the problem is that the user is copying the geometry in the component instead of the component.
Are you actually using SketchUp Free (web)?
What graphics card? You put ‘not’ in your profile but there must be a GPU.