The `GPENCIL_NEXT` was no longer defined, so the shader is split and only loaded for gpencil next. Pull Request: https://projects.blender.org/blender/blender/pulls/109010
The `GPENCIL_NEXT` was no longer defined, so the shader is split and only loaded for gpencil next. Pull Request: https://projects.blender.org/blender/blender/pulls/109010