ID 472089 - Python 3 - Attempting to export a scene as an FBX file returns a failed error.

Problem summary
Attempting to export a scene as an FBX file returns a failed error.

Customer reported version
modo.15.0v1

Customer reported platform
windows10

Steps to reproduce

1) Launch Modo 14.2v2 or earlier build of Modo.

2) Create test scene with primitive mesh and save as .lxo.

3) Close Modo.

4) Launch Modo 15.0v1

5) Go to System > Python Version > Python 3.7

6) Close and reopen Modo 15.0v1.​

5) Open created test file.

6) Go to Games layout and select Export As..

5) The file explorer should default to the same name as the .lxo file and the .fbx file type. Select Save.​

5) You will receive a Material Tags pop-up, select No.

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6) You will receive the Export Failed error.

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Expected behaviour
The file should successfully be exported as a .fbx

Actual behaviour
Export Failed error is returned.

Workaround
Use File > Export As.. to export as a .fbx file.

Reproduced by support
Modo 15.0v1 - Windows 10

Earliest version tested
Regression - Modo 15.0v1