ID 510555 - Falloff symmetry doesn't work on one side when the viewport is to the back of the model.

Problem summary
Falloff symmetry doesn't work on one side when the viewport is to the back of the model.
 
Customer reported version
modo.16.0v1
 
Customer reported platform
windows11
 
Steps to reproduce
 
1) Launch Modo.

2) Create a sphere mesh.

3) Enable Polygon selection.
 
4) Enable Symmetry.
 
5) Select Falloff > Radial
 
6) In the viewport hold down the right mouse button and drag out the falloff on the right side of the model.
 
7) Pick up the Move tool with the 'W' key.
 
8) Select and hold the center handle of the move tool and move it around.
 
9) Note that nothing happens.
 
10) drag the falloff to the left side of the model and note that the model does respond.
 
Expected behaviour
Deformer should affect the model when the falloff is added to the right side.
 
Actual behaviour
The falloff does not affect the model on the right side.
 
Workaround
Unknown. 
 
Reproduced by support
 
This bug has been reproduced in:
16.0v1 - Windows 10 / Mac OS 12
13.0v1 - Windows 10 / Mac OS 12
 
 
Earliest version tested

13.0v1 - This issue appears to be in all versions of the product