We are running a self-hosted JIRA Core 7.10.2 with JIRA Service Desk 3.13.2 on Windows Server 2016.
I attempted an upgrade which had errors, and ultimately failed, making the Jira Service Desk system unusable. I had to revert to a previous backup, but it seems some previously-closed Service Desk items lost their "Closed" flag, and I'm now unable to properly "Close" them. They stay in the Queue since they're not Closed.
Additionally, this has made me weary of an upgrade to JIRA Core 8.0.2, or any other version for that matter.
Any support and guidance is greatly appreciated.