Summary

After Jira upgrade, the Index menu is missing from ⚙ > System > Indexing 
User was not able to reindex newly upgraded Jira instance, as Index menu is missing.

Environment

8.13.x

Diagnosis

• Check that Secure Admin plugin is installed in the Jira application (in the page ⚙ > Manage Apps > Manage Apps)
• It this add-on is installed, try to disable this add-on and check if the issue goes away.

Cause

• Secure Admin plugin is causing this issue. 

Solution

• Disable the Secure Admin plugin to resolve the issue.