Imported Minimap error

I was wanting to use a black picture to cover the minimap for my map. So i created a 32x32 tga file and imported it in my map. I called it war3mapMap.tga and set that as the path aswell. When i tried to run my map after importing it, the map loads but when i press a button to begin the game crashes with a critical error.

Did i set the size, type, or name wrong? or what have i done to cause this crash?

Thanks in advance.

Try making the Minimap image 128x128 instead.

I chaged it to 128x128 but i still get the same error. Most wc3 images are in blp, maybe this should be aswell?

EDIT: I made the file 256x256 and it worked :) but...the units dots are showing up on the map, so i can see white and blue dots all over the place. Is there a way to fix this?

No, there isn't.

Unless you change all the player color textures to black.

Is this really worth it?