ID 400116 - ProRender crashes when you add a material preset.

Problem summary
ProRender crashes when you add a material preset.

Customer reported version
modo.13.0v1

Customer reported platform
10.13

Steps to reproduce

1) Open Modo and go to the ProRender Beta layout.

2) Create a simple cube in the 3D viewport.

3) Select the cube and then press F6 to open the Presets browser.

4) Choose a material within the Presets browser and assign it to the cube, an Automatic Sizing window may appear, if so select Yes.

5) Press the play button in the render windows and Modo will crash, you may need to click the render window a couple of times.

Expected behaviour
For the cube to be rendered.

Actual behaviour
Modo crashes when trying to render the cube.

Workaround
Unknown.

Reproduced by support

This bug has been reproduced in:
Modo 13.0v1 - Windows 10 - MacOS 10.13

Earliest version tested

Modo 13.0v1 - This feature did not exist before this version.