ID 324469 - Changes made in the 387.## NVidia driver series and above may cause GPU artefacts in Mari

Problem summary
Changes made in the 387.## NVidia driver series and above may cause GPU artefacts in Mari.

Customer reported version
3.3v1
Customer reported platform
Windows 10
Steps to reproduce

1) Install a 1080 Ti as your assigned GPU for Mari
Note: Since initial testing we have now found that this is presenting on other NVidia cards.

2) Update your driver to 387.## or above.

3) Launch Mari and Open any project

4) You will see GPU artefacts as green or black squares that cannot be painted over.

5) Try exporting the textures, the green or black squares will still present in the corners of 256x256 tiles, repeating across the texture.

Workaround
From further testing, we have found two potential workarounds for this issue:
 

1) Please roll back your NVidia drivers to predate 387.## such as 385.69

2) Please try disabling Compute Shaders in your Mari Preferences which should cause the existing black pixels to disappear. 

        (Edit > Preferences > GPU > Shaders > Compute Allowed)

Reproduced by support
This bug has been reproduced in:
Mari 3.3v1 
Mari 3.2v1 

Unable to reproduce bug in:
Mari 3.1v3

Earliest version tested
Last working version: 3.1v3

Expected behaviour
There should be no green or black artefacts across textures and imports.

Actual behaviour
Artefacts appear in a 256x256 tiles across the geometry and in exported textures.