ID 477294 - Duplicate and Convert to Mesh causes Modo to hang.

Problem summary
Duplicate and Convert to Mesh causes Modo to hang.

Customer reported version
modo.15.0v1

Customer reported platform
10.15

Steps to reproduce

1) Launch Modo 15.0v1.

2) Open customer provided scene.

3) Select one of the Mesh Fusion items on the Item List and go the properties below.

4) Scroll down do Mesh Output and click on Mesh Mode.

5) From the dropdown list select Airtight Final.

6) Click Dup & Convert to Mesh.

7) In Fusion Output NFMesh pop-up window click on Create Mesh.

8) Modo becomes unresponsive until force quit.

Expected behaviour
Item should be duplicated and converted to mesh.

Actual behaviour
Modo becomes unresponsive until force quit.

Workaround
Unknown.

Reproduced by support

This bug has been reproduced in:
Modo 15.0v1 - Mac OS X - regression

Unable to reproduce bug in:
Modo 14.2v1 - Mac OS X

Earliest version tested
Modo 14.2v1 - Mac OS X - This issue doesn't appear in this version and has regressed