Terrain texture problem

[kiraralove]

Hi guys.
As soon,I maked a new terrain texture for my maps.But everytime when I go in the game > tools > map maker > and I choose from the terrain texture ,my new texture [sunrisegrass] it is crashing.
What I did-
-I did a new texture > dimensions 512 x 512 > .jpg file
-I added into default .mat which is in >media>terrains>textures as sunrisegrass.jpg in the end of the list
-when I go on the game and I click on it,it's crashing.

Maybe because I set it between stonepieces sunrisegrass templestone.
Did I needed to move it  in the end of the list?As I did in the mat file ?
If I need,how I do that?

Your suggestions are welcomed.

[nicekind]

Is it on RGB?
Did you make it with Gim/Photoshop (Paint doesn't work.)
Your texture has to be on RGB color mode.

[Bawfle]

Open up your Height map in GIMP or Photoshop and make sure it's set on RGB colour and it have to be 513x513 Pixles. Then you can draw your terrain mask over it using these colours:

R - 225, 0 ,0.
G - 0, 225, 0.
B - 0, 0, 225.

Then you can save it and use different textures for your map.