ID 314015 - Switching between two channels with differing colorspaces can cause issues with Scalar Data

Customer reported version
3.3v1
Customer reported platform
n/a

Steps to reproduce

1) Create an 8bit Channel with your 8bit Scalar data set to Linear

2) Check that your Color Data colorspace is set to 'Automatic (Linear)'

3) Toggle Scalar Data on

4) Create a second channel; 16bit, sRGB.

5) Check that your Color Data colorspace is set to 'Automatic (SRGB)' 

6) Change to your new channel (16bit)

7) Change to your first channel (8bit)

8) The Scalar Data will now appear differently to how it originally looked.

Workaround
Navigate to your GPU preferences (Edit > Preferences > GPU) and disable Comput Shaders Allowed.
Changing this setting may solve some of the issues experienced with Scalar Data.

Reproduced by support
Reproduced 3.3v1 - Windows 7, CentoS6
Other versions reproduced by dev team.
Earliest version tested
Issues with Scalar Data will present since colorspace implementation (Mari 3.0v1)

Expected behaviour
Changing between channels should have no affect on the previously existing channels and their colorspaces.

Actual behaviour
Changing to the new 16bit Channel darkened the results of the 8bit channel though this may vary from project to project