Why can I see lines through a closed Polysurface as shown in the picture?
Are you in ghosted display mode? Try Shaded
If all else fails ‘ClearDrawOrder’ in the command line.
thank you for the help Japhy!
But it wasnt that. I used the command MovetoFront and I was not aware that this also applied to polysurfaces.
Run command _Options
Uncheck option (If active) → View → Display Modes → YoursDisplayMode → X-Ray all wires