The Automator.app plugin has been updated. This update corrects a few typos in the service and device identifiers. As such any existing user who updates their plugin from the earlier version (1) to this version (3) and already has an automator.app device created will have to manually change the device type from
urn:schemas-automatorapp-com:device:Automator:1
to
urn:schemas-automatorapp-com:device:Automator1
Note the change in the last few characters.