How?
Why does the health bar ingame is just an gdevelop logo but not ingame is a normal green health bar?
That’s a placeholder sprite, I believe it happens when the sprite can’t be found, usually refreshing GDevelop fixes that mistake, but there might be an issue with the image itself.
Yeah @ResinTheFuriousMage is right.
I’d try deleting the sprite (not the object itself, just the sprite) from both the scene editor and from the resources tab. Then re-add it.
Ohhhhhhh… I didn’t know that.