Material on sprite problem

For some reason, when I put a material on the sprite, it gets red. The material is on Sprite Diffuse mode.
The material doesnt have any collors selected, neither the sprite.
This is how it looks like.

Any ideia on how to fix it?

anyone?

Fixed, it was the scene lightning problem, it was on red, just changed it to white and it worked just fine.
Will leave the topic here in case someone runs into the same problem…