All the rooms in my game have the size of 1280x720, so normally my game runs like this:
When I try to enable fullscreen, none of the game's buttons respond to clicks, but the keyboard still works. So in the initial menu I clicked on the button to go to the settings room (image 1) and nothing happened, but when I typed "c" on my keyboard went to the settings room:
OBS - There is a distortion, but not the view in that image (I had to convert image 3 to jpg, because in png it was over 2MB in size).
I've thought about switching to 1920x1080 and hiding the title bar, but I'd really like to do things the "right way".
EDIT 1 - Another way to enable full screen. (It also does not work)
create event: window_set_fullscreen(true);
EDIT 2 - By doing a few tests I noticed that when it is in full screen, the clicks behave as if it had a ghost room at the top left of the screen. Like this:
That is, I click the right side of the word music (in blue) and the language changes.
OBS - The buttons in my game are mostly sprites that I mapped and added a global left pressed event.