Loop cuts not being displayed on Plane Mesh?

Support Modeling
1

Hey everyone so today I was modeling something, I added a plane and wanted to subdivide it using Ctrl+R but the purple cuts are not being displayed on the plane´s surface. I tried adding a cube and it worked okay.

So I went back to my plane, pressed Ctrl+R again and just clicked on the face and it only added one vertex point to the upper edge instead of two (one to the upper edge and one to the bottom edge).

Anybody has any idea what the problem is?

Have a great day.

2

Check it is actually a quad plane.
If it has only 3 or more than 4 sides you cannot loop cut it. You can see number of vertices in the blender info header and remove duplicate vertices with W / remove doubles)

3

Thank u very much, its working now : )