Before applying a boolean subtraction, I copied the cutting mesh (a box). Later, when pasting this mesh back in, I can’t find a way to get a surface on it. It’s only appears outlined like an empty … I’m attaching the .blend file if someone’s willing to take a look: Rowboat_v103.blend (2.4 MB).
Select the object, go to Object properties ->Viewport display, in “Display as” in the dropdown menu select “Solid”.
In your case it was “Wire”.
You are fantastic. Thank you!