ID 543022 - When ngons are present, using Edge Slice causes Modo instability

Problem summary
When ngons are present, using Edge Slice causes Modo instability. 

Customer reported version
Modo 16.1v5 

Customer reported platform
Windows 11 

Steps to reproduce 
1) Download attached file and open it in Modo

2) Select the mesh in the Scenes Viewport, then navigate to the Edit tab in the Model toolbar.

3) With the mesh selected, activate Edge Slice tool then set initial cut point on a vertex in a corner of a polygon.

4) In the Edge Slice options enable Multi Slice, then continue editing a mesh by placing second cut point on an edge crossing over few polygons from initial cut point.

Expected behavior
Modo should remain stable while using the Edge Slice tool when ngons are present. 

Actual behavior
Modo becomes unstable while using the Edge Slice tool when ngons are present. 

Workaround
Unknown.  

Reproduced by Support in:
Modo 16.1v5 - Windows 11, macOS 11.7 Big Sur - regression 

Unable to reproduce bug in:

Modo 16.1v4 - Windows 11, macOS 11.7 Big Sur 

Earliest version tested
Modo 16.1v4 - This issue doesn't appear in this version and has regressed.