ID 499007 - Toggling the drawing of instance arrays in the Viewer can crash Katana

Problem summary
Toggling the drawing of instance arrays in the Viewer can cause Katana to hard crash.

Customer reported version
Katana 4.5v1

Customer reported platform
CentOS 7

Steps to reproduce


Depending on the Operating System and whether testing Katana 4.5v1 or 5.0v1, this crash may occur earlier in the steps.

1) Open the attached scene

2) Fully expand the scene graph

3) Enable the Viewer Visibility working set

4) Shift-click enable Viewer Visibility at /root/world/geo/Masters

5) Shift-click enable Viewer Visibility at /root/world/geo/master/MOD/High_GEO/comp_INC_000_grp/instance/Mins

6) Shift-click disable Viewer Visibility at /root/world/geo/master/MOD/High_GEO/comp_INC_000_grp/instance/Mins


Expected behaviour
The instance array is hidden in the viewer

Actual behaviour
Katana crashes

Workaround
Unknown.

Reproduced by support


This bug has been reproduced in:
Katana 5.0v1 - Windows 10, CentOS 7
Katana 4.5v1 - Windows 10, CentOS 7

Earliest version tested
Katana 4.5v1/5.0v1 - This feature did not exist before this version