Spine doesn't load well everytime

[Bouh]

Is there an existing issue for this?

• I have searched the existing issues

Describe the bug

Spine doesn’t always load all the files properly, tests was done on two different computer on Windows 10.

2025-10-27.15-47-29.mp4

When opening a project that includes a Spine object, the console shows a loading error.
The relevant line checks something like spineDataOrLoadingError.skeleton, but there’s no “skeleton” in the Spine files, so that check probably shouldn’t be used to verify whether the Spine atlas file is valid.

See the GDevelop project below, which works fine on version 5.5.244, but causes issues on another computer running the same version of GDevelop.

On my pc the project just show this error in GDevelop's console (not in runtime, the engine):

And on another computer the console show:

and

Also, the spine object, have no placeholder by default when the texture/atlas/spine files, doesn't load

Steps to reproduce

Open the project:

project-working-in-244.zip

GDevelop platform

Desktop

GDevelop version

5.5.244

Platform info

Windows 10

Additional context

No response

[D8H]

_loadSpine is called 2 times. When it’s called the 1st time from the constructor _spineResourceName is not set so It can’t work thus the error. The call should probably be removed but I think it’s not the issue.

The 4 errors you have on the other computer is as if card.json doesn’t exist.