Invoke-PSUScript fails when using custom role - PSU version 5.5.1

Not sure what’s going on here. I’ve created an app which uses Invoke-PSUScript. Everything works fine when using the built-in administrator role. But if I try to create a custom role and use that to limit access, I get the following error:

Cannot retrieve the dynamic parameters for the cmdlet. Status(StatusCode=“unknown”, Detail=“Bad gRPC response. HTTP status code: 500”)

I’ve tried:

Invoke-PSUScript -name ‘Myfolder/My_script.ps1’ -TrustCertificate

Invoke-PSUScript -name ‘My_script.ps1’ -TrustCertificate

Invoke-PSUScript -script ‘Myfolder/My_script.ps1’ -TrustCertificate

Invoke-PSUScript -script ‘My_script.ps1’ -TrustCertificate

The custom role has all permissions for testing purposes:

MyCustomRole automation.scripts.MyFolder\My_Script.ps1 All

MyCustomRole automation All

MyCustomRole apps All

MyCustomRole apis All

MyCustomRole portal All

MyCustomRole platform All

MyCustomRole home All

MyCustomRole support All

MyCustomRole settings All

MyCustomRole security All

I’ve tried granting this custom role to:

Scripts

Apps,

Variables(secrets)

I’ve tried testing with both a local account and my test SSO/Entra account.

In the same app I’ve also got Get-PSUJob and this works great no matter which role is assigned.