Xpath assignment works in short-lived, not in long-lived

Hello,

Given a /process_data/servers/servers/server XML variable with the below XML:

<servers>

  <server name="server1">server1</server> 

  <server name="server2">server2</server>

</servers>

Assignment to a process XML variable:

/process_data/iteration_wizard8_data

This xpath xpression:

(/process_data/servers/servers/server)[2]

When the process is configured as short-lived, the variable is correctly populated with the <server name="server2">server2</server> XML element.

But when the process is deployed as a long-lived, the variable is empty.

Is this a bug?

I am using

Adobe Livecycle Workbench ES3

Adobe Livecycle ES3 server

Thanks