Mesh Variation node usage inside macro - lost of material slot name

When using a mesh variation node within a macro instance script, the material slot name of the input mesh is not transferred.

On the generated mesh output, the material slot name is "None"

• Create a macro instance.
• Add a macro function that has a mesh variation node inside of it, inputting a mesh and outputing a mesh.
• Connect this into a simple mesh creation workflow.
• Check the generated mesh data.