Our JIRA OnDemand instance is configured to display development updates from GitHub. This works (with some delay) and we've been using it succesfully for at least six months.
I recently discovered Triggers: https://confluence.atlassian.com/display/JIRA/Advanced+workflow+configuration
I updated two of our workflow status transitions such that tickets should transition to In Progress on branch creation and get Resolved when the branch is merged. As far as I can tell, everything is correctly configured (per the directions on Confluence).
However, nothing happens when my teammates branch or merge. Interestingly, the tickets still update with GitHub status(es). I have re-synced our repos and everything--no luck. The tickets correctly indicate that changes have been MERGED but workflow transitions never happen (we waited about a day and a half before concluding that it wasn't working).
I haven't been able to find any documentation on this. 