Hello, I have this blue line asking for connect two GND (small Squares) even I have the Copper Area set to GND. Clearly both GND squares have enough connection via the Copper Area. There is no error in the DRC. There is an error in the GND Nets. Possible cause: I was using Copper Zone Invisible and for mistake I made another Copper Area on top of this, I use Undo but I am not sure if the second GND Copper Area was undid. I have no idea how to delete Copper Area and could not find anything in the web. Any help is more than welcome.