ID 274309 - Viewing certain node combinations returns a Shader Compile Error

Problem summary
Viewing certain node combinations in the NodeGraph returns a Shader Compile Error

 

This bug has been identified as a duplicate and closed. For more information on this issue, please head to the following link to track the bug by its duplicate ID:

TP 271766 - Mari Displacement causes a shader error with certain node configurations

Customer reported version
3.2v1
Customer reported platform
windows7

Steps to reproduce

1) In the Mari Nodegraph create a Cloud Node

2) Create a Merge Node.

3) Attach the Cloud Node to the Base and Over Ports of the Merge Node

4) View the Merge Node. Everything should work correctly.

5) Select the Merge Node and press CTRL+G to group it.

6) View the result of the Group. Everything is ok.

7) Open the Group Node

8) Select the Merge Node inside the Group and press 1 to attach a viewer

9) A Shader Compile error will appear.

Workaround
Unknown. 

Reproduced by support
Win 7 - 3.2v1, 3.1v3, 3.1v1. 3.0v1
CentOS6 - 3.2v1, 3.1v3, 3.1v1, 3.0v2
OSX 10.12 - 3.2v1, 3.1v1, 3.0v4, 3.0v1

Expected behaviour
The results should be correctly viewable both inside of the group node and outside.

Actual behaviour
Shader compile error: