Can't push/pull to create a opening

Hi there,
I Justu downloaded Sketchup yesterday and am trying to create the apartment me and my girlfriend just bought.
I’ve made 3 windows and a single door but when trying to make door number two the push/pull tool won’t create an opening like it did on the windows and other door. It just creates a weird visual effect where the hole is supposed to be.showbox

I’m a complete noob so I’m sure I’m doing something wrong.

Any help appreciated!

Share the .skp file so we can see what you’ve got. The common reasons for what you describe are either that the two faces of the wall aren’t parallel or that the rectangle for the door is drawn off axis or that the walls have been grouped and the rectangle for the opening is outside the group.

Which version of SketchUp Pro are you using? Which version of the Mac OS? Please complete your profile.