Wierd Open Edge error

[gamble]

Ok, Im making Red and Blue custom teleporters for each of the bases instead of using traditional green.

I made the faces. Made a sub-material and put the bitmap on it. I named the submaterial telered! Made the shader a .shader_transparent_chicago similar to the orginal teleporter but it has different animations. If its render only how come i still get an open edge error?

[John Spartan]

i cant help u but man that map looks awesome