Hello. I am using Spine version 4.2 in Unity. Until now, I was using Unity 2022.3 and all the functions of Spine were working normally. However, this time, when I used Unity 6, an issue related to the outline occurred. When I enable the outline of Spine in Unity 6, only the outline is visible and the texture inside the outline is not visible.

Basic texture

Enabling the outline
When the same asset was imported in a version before Unity 6, the outline shader worked normally. I tested it with version 4.3 because I thought it might have been resolved in version 4.3, but the same problem occurred.

I confirmed that if I disable the outline pass in the outline shader, it looks like a normal shader without the outline. However, I don't know enough about shaders to know how to fix this. Is there anyone who is having the same problem?