ID 487165 - Modo crash when selecting Group by Package in Channel Viewport Settings.

Problem summary
Modo crash when selecting Group by Package in Channel Viewport Settings.

Customer reported version
modo.15.1v1

Customer reported platform
windows10

Steps to reproduce

1) Launch Modo 15.1v1.

2) Go to Channels tab under the item list and right-click on the tab.

3) Go to Viewport Settings > Group by Package.

4) Observe that Modo crashes.

Expected behaviour
Modo should continue functioning.

Actual behaviour
Modo crashes.

Workaround
Unknown. 

Reproduced by support
Guidance: Have you reproduced the problem? In which versions have you reproduced the problem? DELETE THIS LINE

This bug has been reproduced in:
15.1v1 - Windows 10 - Regression



Unable to reproduce bug in:
Modo 15.0v1 - Windows 10

Earliest version tested
Modo 15.0v1 - This issue doesn't appear in this version and has regressed