Copied components don't work

What variable? It’s all variables of some kind. Collision settings and assigned meshes are also variables written inside the component. These are not copied, but some internal variables such as Default Tick and visibility settings are. I don’t know the conditions under which what is and isn’t copied.
I don’t want it to revert to the default because I want the settings to be copied. I want same components to work the same way in the same environments.