ID 542979 - Network Material Edit nodes will only display one nodes worth of promoted parameters when the connections of those nodes only pass through a Shading Group Node

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Problem summary
Network Material Edit nodes will only display one nodes worth of promoted parameters when the connections of those nodes only pass through a Shading Group Node. However, parameters promoted on nodes inside the Shading Group and nodes who have at least one connection stream that does not pass through a Shading Group node are unaffected by this limit.
 
Customer reported version
Katana 6.0v2
 
Customer reported platform
CentOs 7
 
Steps to reproduce
 
1) Open the attached Scene File or Create a Network Material Create node that contains two promoted parameters such as below:



2) Then create a Network Material Edit node and connect that downstream from the Network Material Create node



3) Now specify the created Network Material as the location for the Network Material Edit node to edit, then click Repopulate NetworkMaterialEdit
  

Expected behaviour
Both promoted parameters appear on the Network Material Edit nodes Material Interface.
 
Actual behaviour
Only a one of the promoted parameters appear on the Network Material Edit nodes Material Interface.
 
Workaround
Avoid passing more than one "stream" of promoted parameters through a ShadingGroup node.
 
Reproduced by support
This bug has been reproduced in:
Katana 6.0v2 - Windows 10, CentOs 7
 
Unable to reproduce bug in:
Katana 6.0v1 - Windows 10, CentOs 7
Katana 5.0v5 - Windows 10, CentOs 7
 
Earliest version tested
Katana 6.0v1 - This issue doesn't appear in this version and has regressed

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