ID 349467 - Modo crashes when enabling the Preview Renderer with the RayGL Options pop-up window visible.

Problem summary
Modo crashes when enabling the Preview Renderer with the RayGL Options pop-up window visible.

Customer reported version
modo.12.0v1

Customer reported platform
windows10

Steps to reproduce

1) Launch Modo 12 and switch to the Render layout.

2) In the 3D Viewport, open the RayGL Options window under Default > RayGL...

3) Hit the pin icon in the top right corner of the RayGL Options pop-up window to keep it pinned.

4) Enable the Preview Renderer, Modo will immediately crash to Desktop.

Workaround
n/a

Reproduced by support
This bug has been reproduced in:
Windows 10
12.1v1 Beta 4
12.0v1

macOS 10.13
12.1v1 Beta 4
12.0v1

Earliest version tested
12.0v1 - This feature did not exist before this version

Expected behaviour
Preview Renderer should be enabled.

Actual behaviour
Modo crashes immediately to the Desktop.

Steps to reproduce

Workaround