just as a head-up : The extension started not working for me all of a sudden, the function file_dropper_init() returning 0. I have no idea why, it worked fine until now, but now I can’t seem to get it to work on my computer anymore, except very rarely. I didn’t change any of the code, even old itch builds of my game that used to work do not now, so this is probably a change on my computer rather that on gamemaker, but I can’t figure out what change caused that to happen. Sometimes it will in fact work randomly but that’s like once every 20 tries. This is probably not helpful at all to debug but this is all I have :/
EDIT : I fixed it by disabling the option : Start fullscreen and running windo_set_fullscreen(true) at startup instead.