Map Height Troubles

[cafren]

I am making this map. So, I typed the map Height Terrain into the box and when I click Enter, my game crashes when I want to use that map height I created. Why did that happen? D:

[sonicTH1554]

it happens to me to when i make maps... so i just download free terrains.. i try doing a bonfire one but it crashes everytime

[gorgeous jaguar]

Here is a list of things that could be wrong I copied it from the FH manual:

1. It must be saved into a PNG format
2. It can only consist of 1 layer!(If you use more the game will crash upon importing it) Make sure you flatten/merge the layers on the image before saving it.
3. The image must be saved/edited in grayscale mode and cannot consist of or use colours(If not the game will crash)
4. The Image size should be even on both size, the standard size is 513 x 513 pixels.
5. The use of "Alpha Channel" should be left unmarked/turned off.

If none of these are the problem then I would try making it again.

[CloudFish]

adding onto what gorgeous has said, the alpha channel is accessed in the "layers" area of gimp, am not to sure of how to edit it in photoshop

[cafren]

Ah ok, The problem is fixed Thank you both for helping

[sonicTH1554]

sorry i wished i could help but my FH was doing the same