GitLab doesn't close Jira issue

Hello, I installed GitLab 8.8.3 CE and Jira 7.1.9, used this manual to configure GitLab and Jira.

Problem: when I accept merge request, issue status on Jira does not change, only comments appears that user solved issue with “commit hash”.

Here is jira transition table as I understand, transition id should be userd “2” to “Close” issues or “5” to change status to “Resolve” on jira. But it does not work either way.

Any suggestions how to troubleshoot this ?