I was able to test on a Windows 8 pc. Same problem. It seems that there is an issue with loading this type of file (maybe because of the dimensions, but it could be anything) for Windows 7 and 8.
Yes, the sprites have a black overlay but that was a preference since only the file loading needs to be tested.
Thanks!
Viewing post in Fixed missing dlls in windows releases comments
There is an issue open for this.. Apparently also in some Windows 10 pc this happens.. But i couldnt reproduce it on any of the machi es ive tested. Toda i tryed in a win7 32 bit machine and worked... I hope someone can grab the cose and help me debug this.
Also, it seems that in different mchines the size that causes problems is different as other user reported. Someone suggested that it May be cause of Windows memory allocation system, because in Linux this doesnt happen.
Ill keep looking for a solution
Sorry for the inconvinient.