ID 512506 - Unwrapping causes UV islands to be oriented incorrectly.

Problem summary
Unwrapping causes UV islands to be oriented incorrectly. 
 
Customer reported version
modo.16.0v1
 
Customer reported platform
windows10
 
Steps to reproduce
 
1) Launch Modo.

2) Create a cube mesh.

3) Select all edges.
 
4) Go to UV layout.
 
5) In UV Tools click on Unwrap Tool. 
 
6) Note that in UV viewport one or more islands will be rotated. 
 
Expected behaviour
All islands should be oriented in the same position.
 
Actual behaviour
One or more islands will be rotated without prompting.
 
Workaround
Unknown.
 
Reproduced by support
 
This bug has been reproduced in:
16.0v2 - Windows 10 / Mac OS 12
14.0v1 - Windows 10 / Mac OS 12
 
Earliest version tested

14.0v1 - This issue appears to be in all versions of the product