ID 408911 - Nuke doesn't show error message when files fail to load on startup

Problem summary
Nuke doesn't show error message when files fail to load on startup.

Customer reported version
nuke.12.0v1

Customer reported platform
windows10

Steps to reproduce

1) In your .nuke directory, save an init.py file with the line:

import fakeModule

2) Open Nuke 12, it closes without warning

Expected behaviour
For an error dialog to appear saying which file errored:

Actual behaviour
Nuke closed with no explanation

Reproduced by support

This bug has been reproduced in:

Nuke 12.0v1 - Windows 10 - macOS 10.14 - CentOS 7 - regression

Unable to reproduce bug in:
Nuke 11.3v5 - Windows 10 - macOS 10.14 - CentOS 7

Earliest version tested
Nuke 11.3v5 - This issue doesn't appear in this version and has regressed