The background shows up in the object editor, but not in the running game. (Images for reference) The window size is 1080x720, and the image is also a PNG of 1080x720, and is on a separate layer than the other sprites.
The second screenshot is the default GDevelop preview?
Yeah, the second image is the preview
Check in the Resources tab that the name of the image is not colored.
Did you use a layer effect on it?
The white is the background color or an image?
Ah, thanks! I accidentally gave it a lighting layer