Force a drill hole to be unplated
If drill holes have a copper pad on top and bottom which by convention makes them plated although in your design they should be none plated, these will come out as plated from the automated analyses process.
Open the drill & slot editor via the Buildup Editor.
Plated drill holes are shown in red.
Select the hole(s) that need to be defined as unplated. This will add a yellow outline around the selected hole.
Click the “Set” button in the Define menu next to the entry “unplated”.
The colour of the hole will now change to green to indicate the hole is unplated.
Save your changes by clicking the Apply button.