Problem cant put Neon material on Special Mesh?

So my question is why cant we use neon with filemesh ? I tried to use it but it dont even do the glowing effect .. I'm trying to make a lightsaber so i wanted to use the offset option of the speical mesh to make it but i cant because of that neon effect that doesnt work .. So if someone have a good solution

All you have to do is remove the texture but it will make your entire brick the same color. I would recommend using unions and making your own.