Please see zipped GKO file(unused_line_2.zip). You can see unnatural line the lower part of board outline. It may come from my object handling miss.
I tried to remove this line at Keep-Out layer, but the line does not exist in the layer.
How can I select and remove this line object from Keep-Out layer?
I don't care if your method clear all object from this layer. I'll draw board outline again.
I think that it will resolve easily if I can select all objects and delete in Keep-Out layer.
Ctrl+A short cut selected all object from all layers...
unused_line.zip is obsolete file.
This problem has been resolved!
Select Keep-Out layer and click [Home]-[Select]-[All on layer], and delete all object.
And I defined board outline again.