ID 593443 - Float Vector parameter erroring when changing value mode from constant to expression in Linux

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Problem summary
If you add a Float Vector user parameter to a Group node, Katana will error when attempting to change its value mode from constant to expression.
 
Customer reported version
Katana.7.0v4
 
Customer reported platform
rhel9
 
Steps to reproduce
 

  1. Create any node such as a Group node.
     
  2. Edit User Parameters and add a Float Vector parameter.
     
  3. Change it's "Value Mode" from "Constant" to "Expression" (via right-click context menu).
 
Expected behaviour
I was expecting for the expression to not error out as soon as I turn it on
 
Actual behaviour
Katana gives out an error right away.
 
Workaround
Unknown.
 
Reproduced by support
This bug has been reproduced in:
  • Katana8.0v1 - Rocky 9
  • Katana7.5v1 - Rocky 9
  • Katana7.0v4 - Rocky 9
  • Katana6.5v4 - CentOs 7
  • Katana6.0v5 - CentOs 7
  • Katana5.0v7 - CentOs 7
  • Katana4.5v7 - CentOs 7
  • Katana4.5v1 - CentOs 7 - Regression
 
Unable to reproduce bug in:
  • Katana8.0v1 - Windows 10
  • Katana7.5v1 - Windows 10
  • Katana7.0v4 - Windows 10
  • Katana6.5v4 - Windows 10
  • Katana6.0v5 - Windows 10
  • Katana5.0v7 - Windows 10
  • Katana4.5v7 - Windows 10
  • Katana4.5v1 - Windows 10 
 
Earliest version tested
Katana4.0v8- This issue doesn't appear in this version and has regressed
 

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