Symptoms

Plugins are not working properly after an upgrade in the JIRA instance, or UPM (Universal Plugin Manager).

Diagnosis

The UPM Version is: 2.18 or 2.17.15 and the following is appearing in the license status:

Cause

There is a known bug in these mentioned version of UPM causing this behaviour when using Open Source licenses of JIRA with Plugins.

Workaround

Downgrade to the bundled UPM version from JIRA by:

1. Stop JIRA
2. Remove the UPM jar from <jira-home>/plugins/installed-plugins
3. Start JIRA

Resolution:

Upgrade the UPM plugin to version 2.18.1 when released.