It draws the top left corner in all corners. This happens to most panel sprites I spawn off-screen but not all. Which panel sprite is affected by this is not consistent and seems random (I generate some of them in events and some of them from in the scene editor on an external layout and it happens to all of them).
It renders correctly in the scene editor.
I reproduced it successfully. While doing that I found out that it only happens when I delete the panel objects (in events) if their X position is smaller than the camera viewport’s leftmost X position (CameraX()-CameraWidth("",0)/2).