https://community.cloudera.com/t5/Support-Questions/NiFi-UI-is-not-loading-template-after-login/m-p/226529#M188389 <P>Hi Matt,</P><P>Sorry for the delayed response.</P><P>Actually NiFi UI was not loading so that users are unable to login to NiFi.</P><P>What I have done is removed the current flow.xml.gz and replaced with the latest backup of flow.xml and certainly NiFi UI was up and working.</P><P>Not sure how to fix if the current flow.xml got corrupted for some reason and there were no error log which I can track for the above issue.</P><P>Thanks &amp; regards,</P><P>SP</P> Mon, 10 Dec 2018 18:19:48 GMT patrasuman 2018-12-10T18:19:48Z