I am just learning Blender and am doing a tutorial on Udemy by Darrin Lile. While doing lecture 63 he separates a face off of an object and is able to use a Boolean modifier to cut a hole in that object.
However, when I try and repeat the steps I run into an issue. The hole isn't created but an extra edge is.
My scale and rotation are 1 and all faces are Blue. I've been told that you cant use a Boolean to cut a plane. However, I also saw that in version 2.90 you could. I am using 2.92.
If anyone could provided any help that would be great!