It seems like the issue you're experiencing with the outline shader in Unity 6 might be related to the shader settings or the rendering order. In previous versions, the outline shader might have been configured to render correctly, but changes in Unity 6 could have affected how the shader interacts with the rendering pipeline. One potential solution is to ensure that the Fill property in the outline shader is enabled, which can help fill any transparent gaps between the outline and the skeleton. This property was introduced to address similar issues with transparency gaps. Additionally, you might want to check if the outline shader is set to render behind the main texture by adjusting the Z offset or render order, as suggested in the context. If these adjustments don't resolve the issue, you may need to look into the shader code to ensure compatibility with Unity 6's rendering changes.

MK82 If your project is a URP project, the section titled “The Outline shader displays only outlines in my URP project. Why?” in the FAQ page of the documentation may be helpful. If that is the case, you do not need to modify the shader yourself.

MK82 I'm glad you figured out the cause! Thank you for getting back to us!