Spritesheet Transparency recognition failure

[adrot]

The Sprite sheet has a green background and each sprite frame has transparency in it because of antialias borders that obviously must be preserved. However, compared to older versions, for some reason, the program puts the colour black in place of the transparent areas. This makes the sprites being saved without transparency. Versions 14 and lower seem to lack this issue. Version 15-17 are not viable for testing due to load times/freezing/crashes (the sprite sheet is quite big). Issue is seen on versions 18-19. Version 14 and lower however, will also export frames with duplicates.