Skybox fragment shader error in 2.2.1 on Android

[yahel-ck]

Hey :)

I'm trying to upgrade my project to use gdx-gltf version 2.2.1 (currently using 2.1.0) and I'm getting a compilation error in the fragment shader of the Skybox:

com.badlogic.gdx.utils.GdxRuntimeException: Fragment shader:
    ERROR: 0:1: '' :  version '430' is not supported
    ERROR: 0:2: '' :  #version required and missing.
        at com.badlogic.gdx.graphics.g3d.shaders.BaseShader.init(BaseShader.java:169)
        at com.badlogic.gdx.graphics.g3d.shaders.DefaultShader.init(DefaultShader.java:624)
        at net.mgsx.gltf.scene3d.scene.SceneSkybox$SkyboxShader.init(SceneSkybox.java:191)
        at com.badlogic.gdx.graphics.g3d.utils.BaseShaderProvider.getShader(BaseShaderProvider.java:36)
        at net.mgsx.gltf.scene3d.scene.SceneSkybox.getRenderables(SceneSkybox.java:247)
...

I got this error when running on an Android emulator (Pixel 5 API 32), but I got no error when running on a real Pixel 8 device.

I was using the basic constructor SceneSkybox(envCubemap) to create it, and I also tried SceneSkybox(envCubemap, SRGB.NONE, null, true) because I noticed the the new code adds #version if lod is enabled, and it did run on the Pixel 5 emulator, but this time I got an exception on my Pixel 8 device:

com.badlogic.gdx.utils.GdxRuntimeException: L0001 Shader languages do not match.
        at com.badlogic.gdx.graphics.g3d.shaders.BaseShader.init(BaseShader.java:169)
        at com.badlogic.gdx.graphics.g3d.shaders.DefaultShader.init(DefaultShader.java:624)
        at net.mgsx.gltf.scene3d.scene.SceneSkybox$SkyboxShader.init(SceneSkybox.java:191)
        at com.badlogic.gdx.graphics.g3d.utils.BaseShaderProvider.getShader(BaseShaderProvider.java:36)
        at net.mgsx.gltf.scene3d.scene.SceneSkybox.getRenderables(SceneSkybox.java:247)
        at com.badlogic.gdx.graphics.g3d.ModelBatch.render(ModelBatch.java:239)

I would appreciate some help to fix this so I can run this properly on all devices.
Thanks :)