ID 485610 - Channel Haul HUD UI is very small and jumps when selecting values.

Follow

Problem summary
Channel Haul HUD UI is very small and jumps when selecting values.
Customer reported version
modo.15.1v1
Customer reported platform
10.15
Steps to reproduce
1) Download and open the attached scene file.
2) Go to the Setup layout.
3) Select the Cube operators Size X, Y and Z channels and the Test meshes Scale channel. 

4) Press C to bring up the Channel Haul HUD.
5) Click and drag the slider on the Scale mesh and notice that it jumps from its start position.

Expected behaviour
The slider UI should be the same size and should start at the same position as the mouse click.
Actual behaviour
The slider UI is smaller and jumps from the mouse click position.

Workaround
Unknown. 

Reproduced by support
This bug has been reproduced in:
15.1v1 - Windows 10, MacOS 10.15 -regression

Unable to reproduce bug in:
15.0v3 - Windows 10, MacOS 10.15

Earliest version tested
15.0v3 - This issue doesn't appear in this version and has regressed.

    We're sorry to hear that

    Please tell us why