ID 374905 - Modo freezes and crashes when navigating the viewport after importing models from a STEP file as Mesh Items

Problem summary
When the Power Translators plugin is used to import and convert models from a STEP file to Mesh Items, the program crashes when these models are visible during navigation in the viewport. These crashes occur only when the Output Item option is set to convert the content to Mesh Items in the Loader Options for Power Translators.

Customer reported version
Modo 12.2v1 

Customer reported platform
Windows 10 

Steps to reproduce

1) Open Modo.

2) Go to File -> Import and then select the attached STEP file to import. 

3) The File Loader Options for Power Translators is now opened. Change to the settings that are shown in the image below. 

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4) Click on "OK" and wait for the content of the STEP file to be converted and loaded into Modo. 

5) After the file has been imported navigate in the scene and Modo will start to freeze and eventually then crash. 

Workaround

Reproduced by support

This bug has been reproduced in:

Modo 12.2v1 - Windows 10 - MacOSX 11.13 

Modo 12.1v2 - Windows 10 

Modo 12.0v1 - Windows 10 

Modo 11.2v3 - Windows 10 

Modo 11.1v1 - Windows 10 

Modo 11.0v3 - Windows 10 

Modo 10.2v4 - Windows 10 - MacOSX 11.13 

Earliest version tested
Modo 10.2v4 - This issue appears to be in all versions of the product.

Expected behaviour
Modo should not crash regardless of which Output Item the STEP file is converted to with Power Translators when the item is visible in the viewport.

Actual behaviour
Modo crashes when navigating in the viewport after a STEP file has been converted to a Mesh Item with Power Translators.