Morning @robsonmartinazzo – it looks like this is just a straight up bug, the Save button isn’t working when viewing the settings for a 2-State widget type, even if no changes are being made to the widget settings. I can see in the browser console that the site is throwing some errors in that case as well.
Apologies for this, I’ll get it fixed with our dev team. Until then, the easiest work around would be to delete the widget, and re-create it with the desired settings. The Save button appears to work OK in the initial creation case.