Changing Cursors Images, is it bugged?

[darkshin]

Hey Guys, I m trying to switch the default cursors images, but by adding a new one and setting it's supposed hot spot I get always a black square inside the game. All images are png as needs to be and if I use an apng image it just doesn't show any square at all. After the failures, I've tried to switch back to the default images, but the black squares persisted. So I've reached a dead end.

Does anybody knows how to do it ?