Problem summary Item Shaders do not affect Instances unless the instance has an item mask applied. Other item types are affected regardless of having an item mask applied.
Customer reported version modo.13.0v1
Customer reported platform windows10
Steps to reproduce 1) Open Modo. 2) Select File > Open the attached scene. 3) Press "F9" to render the scene. Result: The "Instance" item will render, despite having an item shader applied with "Visible to Camera" disabled.
Expected behaviour Instance items should be affected by item shaders regardless of whether an item mask is applied.
Actual behaviour Instance items are only affected by item shaders if an item mask is applied.
Workaround Add an item mask or set a material on the instance item.
Reproduced by support This bug has been reproduced in: 13.2v1 - Windows 10, OSX 10.14.6 13.1v1 - Windows 10 13.0v1 - Windows 10 12.1v2 - Windows 10 12.0v1 - Windows 10 11.2v3 - Windows 10 11.2v1 - Windows 10 11.1v1 - Windows 10 11.0v3 - Windows 10 10.2v4 - Windows 10, OSX 10.14.6
Earliest version tested 10.2v4 - Windows 10, OSX 10.14.6 - This issue appears to be in all versions of the product