Unable to create Integrator from existing Integrator Plugin.

When configuring an Integrator the 'ID Number' field is not automatically populated.  Normally when creating an Integrator this value is filled in with a unique value (UUID) but in this case the field is blank and the creation is not allowed.  When viewing the plugin details directly the screen is also blank.  See screenshots below for examples.

In the $ESEC_HOME/data/das_query.cache/integrator_plugins directory there were multiple instances of the same SMTP Integrator plugin.  All of the directories with that name except for one are empty which caused the symptom referred to.  Removing the empty directories from the cache and restarting the Control Center causes sebsequent attempts to show the correct plugin and ID Number values when creating an integrator.

Screenshot showing blank ID Number field:



Screenshot showing blank plugin details: