Did you get this worked out?
I had an answer from Landesk support. It seems to be a known issu solved in LDMS 9.6 SP1.
I waiting for an answer about a compatible patch for LDMS 9.5 SP1
I just received a final answer from Landesk support.
For ldms 9.5 SP1 the solution is to set the registry key HKLM\SOFTWARE\Microsoft\PowerShell\1\ShellIds\Microsoft.PowerShell
'ExecutionPolicy' to Unrestricted.