ID 396085 - When painting within the UV editor the paint colour is blocky and shown darker than it is in the 3D viewport.

Problem summary
When painting within the UV editor the paint colour is blocky and shown darker than it is in the 3D viewport.

When you then paint elsewhere on the model the first colour is updated to match the colour shown in the 3D viewport.

Customer reported version
modo.13.0v1

Customer reported platform
windows10

Steps to reproduce

1) Open Modo and create a cube item, press the M key to create a material and name this material "test".

2) Select the UV layout and navigate to the Shader Tree, select the newly created test material.

3) Select the paintbrush tool and set the colour, paint the mesh of the cube within the 3D viewport.

4) Now paint around this area within the UV editor, notice how it comes out blocky and darker within the UV editor.

Expected behaviour
The colour should match the colour of the 3D viewport and should be smooth.

Actual behaviour
The colour doesn't match the colour of the 3D viewport and it's blocky.

Workaround
Painting elsewhere updates the UV editor and the colour is then shown correctly.

Reproduced by support

This bug has been reproduced in:

Modo 13.0v1 - Windows 10 - Centos 7 - MacOS 10.13

Modo 12.2v2 - Windows 10

Modo 12.1v2 - Windows 10

Modo 12.0v1 - Windows 10

Modo 11.2v3 - Windows 10

Modo 11.1v1 - Windows 10

Modo 11.0v3 - Windows 10

Modo 10.2v4 - Windows 10 - Centos 7 - MacOS 10.13

Earliest version tested

10.2v4 - This issue appears to be in all versions of the product.