Transparent Editor Rendering Issue

I’m having a major issue with transparent lines in my project. Its as if There is a transparent object that surrounds the area but theres not. because I can move the geometry out of the way and the line goes a away but as soon as I enter the area again, it goes back to having that line through it. as well as when I copy and paste, and the pasted piece is all transparent. Any way to solve this? Thanks!!