ID 380355 - Running hiero.ui.openInViewer() will cause Nuke Studio to crash immediately

Problem summary
Running hiero.ui.openInViewer() will cause Nuke Studio to crash immediately.

Customer reported version

Nuke 11.1v4

Customer reported platform
Windows

Steps to reproduce

1) Open Nuke Studio.

2) Import an image sequence (File > Import File(s)...) and drag it onto the Timeline to create a new sequence.

3) Run the following line of code in the Script Editor:

hiero.ui.openInViewer(hiero.core.BinItem(hiero.core.projects()[0].sequences()[0]))

Nuke should now crash.

Reproduced by support

This bug has been reproduced in:
Nuke  Studio 11.3v1 - Windows 10 - macOS 10.13 (High Sierra) - Linux CentOS 6 - Regression

Unable to reproduce bug in:
Nuke  Studio 11.2v5 - Windows 10 - macOS 10.13 (High Sierra) - Linux CentOS 6

Earliest version tested
Nuke Studio 11.2v5
- This issue no longer appears in this version and has regressed

Expected behaviour
The sequence should be opened in the Viewer.

Actual behaviour
Running hiero.ui.openInViewer() will cause Nuke Studio to crash immediately.