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If the service wasn't running, it can take some time for the system to process the full sync queue. You can see the sync queue by replacing SERVER and using this one-string Beanshell script in the Admin Console, replacing PROJECT with your system's server and project name in this URL: https://SERVER/gui2/tests/ftsstatus.jsp?kb=PROJECT:com.supportwizard.utils.TryTimer.getFTSStatus(com.supportwizard.dictionary.interfaces.Project.service().findByName("PROJECT").getID());
When the revindex queue size shows 0, you're ready to retry the search.
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