My map terrains wont load why? need help...

[Azorukon]

Well see, every time I try to load a height map feral heart crashes at that moment and I cant do anything about it, I've tried several times with other maps to but still the same result, my terrain masks load just not the height maps... I really need to know why soon because I have several map requests to do and I cant let them down, the boundries I've set to 513 by 513 as required and it IS on grayscale... I cant seem to figure out whats wrong... someone help pleaseee D:

[Ruby1234]

Try cropping it down to 512x512. c:

[Azorukon]

oh noes it still didnt work D; what else could i do? .-.

[Ruby1234]

Select the whole image and press Ctrl and C.
Close out GIMP/Photoshop to a blank canvas.
Press Ctrl and V. Then flatten the image and save it. c:

[Azorukon]

it worked! thankies so much ^^ now hopefully my maps wont die on me anymore x3