ID 501628 - Red Channel controls do not function during playback in the Viewer in NukeStudio/Hiero.

Problem summary
Red channel controls do not function during playback in the Viewer.

Customer reported version
Hiero 13.1

Customer reported platform
Windows 10

Steps to reproduce
1) In Nuke Studio/Hiero, import footage and drag it to the Timeline to create a Sequence.
2) Playback the footage in the Viewer.
3) Left-click the mouse in the Viewer and press R on the keyboard, or choose the dropdown setting for the Red Channel.

Expected behavior
The Red Channel should be displayed in the Viewer during playback.

Actual behavior
The Red Channel does not become set until stopping playback.

Workaround
There is no available workaround at this time.

Reproduced by Support in:
NukeStudio/Hiero 13.1v2 - Windows 10, CentOS 7
NukeStudio/Hiero 13.1v1 - Windows 10
NukeStudio/Hiero 13.0v6 - Windows 10,
NukeStudio/Hiero 13.0v3 - Windows 10, CentOS 7 - regression

Unable to reproduce bug in:
NukeStudio/Hiero 13.0v2 - Windows 10, CentOS 7

Earliest version tested
NukeStudio/Hiero 13.0v2 - This issue doesn't appear in this version and has regressed