Hi,
We upgraded JIRA from 5.2.11 to 6.0.7.
While JIRA initially appeared to start ok, subsequent restarts resulted in JIRA appearing to be running, but not serving any content.
Removing the Agile 6.3.1 plugin seemed to resolve that, and JIRA was able to be restarted.
When we now attempt to install Agile, we get a stuck "Downloading and installing" popup from UPM. Agile appears to be present, but missing sprints.
Thanks.