ID 373289 - Viewer gets corrupted when adding a FillMat and Reflection node on a geo object

Problem summary
The Viewer Window gets corrupted ( turns black ) when adding a fillmat and reflection node on a geo object.

This issue breaks the Viewer, the user must create a new Viewer node to review footage.

Customer reported version
nuke.11.2v3

Customer reported platform
centos7

Steps to reproduce

1) Open Nuke

2) Copy the following into your Node Graph:

set cut_paste_input [stack 0]
version 11.2 v3
CheckerBoard2 {
 inputs 0
 name CheckerBoard1
 note_font helvetica
 selected true
 xpos 165
 ypos -120
}
FillMat {
 name FillMat1
 selected true
 xpos 165
 ypos -48
}
Reflection {
 name Reflection1
 selected true
 xpos 165
 ypos -24
}
Cube {
 name Cube1
 selected true
 xpos 165
}

3) View the Checkerboard, this should work as expected.

4) View the Cube node

5) View the Checkerboard again.

Result: The Viewer will be completely black, no playback options are available.

Workaround
Avoid putting a Reflection node after a FillMat node.

Reproduced by support

This bug has been reproduced in:
Nuke11.2v4 - Windows 7 - Mac10.13 - CentOS6.9
Nuke11.2v1 - Windows 7
Nuke11.1v4 - Windows 7
Nuke11.1v1 - Windows 7
Nuke11.0v4 - Windows 7
Nuke11.0v1 - Windows 7
Nuke10.5v7 - Windows 7 - Mac10.13 - CentOS6.9
Nuke10.5v1 - Windows 7
Nuke10.0v6 - Windows 7
Nuke10.0v1 - Windows 7
Nuke9.0v9 - Windows 7
Nuke9.0v1 - Windows 7
Nuke8.0v7 - Windows 7
Nuke7.0v10 - Windows 7 - Mac10.13 - CentOS6.9

Earliest version tested
- This issue appears to be in all versions of the product

Expected behaviour
Nodes should be viewed and played back as expected.

Actual behaviour
The combination of nodes causes the Viewer to break.

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