ID 263058 - Nuke crashes when using RenderMan Pro Server 21

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Problem summary
Nuke crashes when Nuke is set to use RenderMan Pro Server 21

Customer reported version
nuke.10.5v1

Customer reported platform
10.12

Steps to reproduce

1) Install RenderMan 21.X

2) Set the environment variables need for Nuke 

3) Open Nuke

4) Create a PRenderMan Node and View it

5) Attach a Sphere node to the obj input of the PRenderMan, Nuke will crash

It is suspected as Reyes renderer has been removed in RenderMan 21.0
https://rmanwiki.pixar.com/display/REN/RenderMan+21.0#RenderMan21.0-ReyesRenderingisRemoved

Workaround
Use RenderMan 20.X or earlier

Reproduced by support
This has been reproduced on:
NukeX 10.5v1 - MacOSX 10.12
NukeX 10.0v5 - MacOSX 10.12 - Windows 10
NukeX 9.0v1 - MacOSX 10.12

Expected behaviour
For Nuke not to crash when using unsupported plugins

Actual behaviour
Nuke crashed
 

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