title: Marvel license issue. Clusters grayed out
body: <p>I have an Elastic 2.1.0 cluster, logging to an external Marvel 2.1 with Kibana 4.3.1. </p>
  
  <p>All worked fine with trial licenses, but when I updated them with a basic one, all clusters gone grayed out in Kibana and I cannot see info of any of them anymore.</p>
  
  <p>I've tried using the same license on both clusters, with no result. There's nothing relevant in either cluster logs.</p>
  
  <p>Has anyone encountered a similar issue?</p>