ID 474325 - Mesh Fusion breaks with Airtight Final w/parts selected.

Problem summary
Mesh Fusion breaks with Airtight Final w/parts selected.

Customer reported version
modo.14.2v2

Customer reported platform
11_big_sur

Steps to reproduce

1) Download customer provided scene file.

2) Launch Modo and open the scene.

3) Select the Mesh Fusion Item in the Item List and go to the Properties section.

4) Scroll down to Fusion Mesh section and click the dropdown for Mesh Mode. Select Airtight Final w/parts.

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5) Observe that the Fusion Item breaks.

Expected behavior
Fusion Item should not break

Actual behavior
Fusion item breaks.

Workaround
Unknown. If known please add steps to workaround or avoid the problem

Reproduced by support
15.0v1 - Windows 10
14.2v1 - Windows 10
14.1v1 - Windows 10
14.0v1 - Windows 10​ - Regression




Earliest version tested
Modo 13.0v1 - Windows 10 - This issue doesn't appear in this version and has regressed