vRO Powershell plugin not returning results anymore?

Hi,

I'm running vRA 7.2 + vRO 7.2. I'm running the default "Invoke a PowerShell script" workflow, running a simple script Write-Ouput "Hello World". Normally I would receive the result of the script in the log pane being "Hello World" . The log pane isn't displaying any message at all.

Another script provides some additional insights here:

var output;

var session;

try {

  session = host.openSession();

  var result = session.invokeScript(script); //Input script: Write-Output "Hello World".

  var scriptResult = result.getHostOutput();

  output = result.getResults();

  System.log ("script: " + script);

  System.log ("scriptResult: " + scriptResult);

  System.log ("scriptResult.length: " + scriptResult.length);

  }

catch(err) {

  System.log ("ERROR");

  error = err;

  }

finally {

  if (session){

  host.closeSession(session.getSessionId());

  }

  }

The log pane is displaying:

[2017-01-03 21:35:12.213] [I] script: Write-Output "Hello World"

[2017-01-03 21:35:12.217] [I] scriptResult:

[2017-01-03 21:35:12.219] [I] scriptResult.length: 2

As you can see, the script result length = 2 and there's no actual result. Am I missing something here? Some of my script that use the Powershell code are not working anymore. What's going wrong?

Thx

Viktor