ID 231922 - Exception when choosing *Select Instance Source* or *Select Assigned Material Location* commands from *Scene Graph* tab context menu

Problem summary:

When right clicking a scene graph location in the Scene Graph tab, a context menu is shown offering Select Instance Source and Select Assigned Material Location commands, provided the location has 'geometry.instanceSource' or 'materialAssign' attributes set respectively. Using either of these commands does select the correct scene graph location, but then raises an exception.

This worked in 1.6v3 and regressed in 2.0v1.

Steps to reproduce:

1. Open sceneGraphSelectMenuRepro.katana (attached).
2. Fully expand the scene graph.
3. Right click /root/world/geo/primitive and choose Select > Select Instance Source or Select Assigned Material Location.

Expected behaviour:

/root/materials/Material is selected

Actual behaviour:

/root/materials/Material is selected and an exception is raised.

Workaround:

No known workaround.

Reproduced versions/platforms:

• 2.0v1 / Linux
• 2.1v1 / Linux
• 2.5v3 / Linux