terrain map not working

[Dyani246]

I made a 'terrain alpha map' on gimp and put it in the exports file. It had no black or white patches or uncolored areas. I used RGB and set it to 513x513. I uploaded it and the red part was fine, it worked. Then when i went to change the other two, the second one just overlapped the first and the third wasn't there. There were also a lot of black patches on the map with no terrain.

What do i do?

[Ramine]

I don't quite understand your post, you should try telling us step by step what you did.

I'm just going to throw this little tutorial in here, you can double check and see if you did everything right.
http://www.feral-heart.com/index.php?option=com_content&view=article&id=7&Itemid=10

[Ruby1234]

It seems to be another case of FH derping with maps.
Try cropping your image to 512x512 and see if that works now.