ID 224595 - Mari Crashes when picking a colour from the colour pallet with AMD FirePro GPU's

Problem summary

Mari can crash when selecting a colour from the colour pallet using an AMD FirePro GPU 

Reported version

2.6v5, 3.1v1 & 3.0v4b5

Reported platform

Windows 10 & Windows 7 

Steps to reproduce

1)Launch a project in Mari e.g. the Default Head project

2) Paint, bake and then select a colour

3) Crash

Reproduced by support
Found through manual QA 
In the stated versions and OS'

Expected behaviour
To pick a colour

Actual behaviour
Crash