Rich Text Editor is not working after the upgrade

Summary

Rich text editor is not enabled with JIRA.
 

Steps to reproduce

1. Install JIRA 7.1.X
2. Install Rich Text Editor for JIRA plugin from MPAC
3. Upgrade JIRA to 7.2.0
4. Navigate to System settings

Expected Result

Rich text editor menu is visible on the left navigation toolbar.
 

Actual Result

The Rich Text Editor menu item is not visible.

Workaround

1. Please navigate to Administration -> Add-ons -> Manage Add-ons
2. Select 'System' from the drop-down to filter the System add-ons
3. Type in 'Rich' in the search filter to filter out the Rich Text Edtior
4. Expand the Rich Text Editor for JIRA
5. Enable the add-on with the button

Notes

Based on the bug report in --JRA-8943--:

As copied from https://jira.atlassian.com/browse/JRA-8943?focusedCommentId=953030&page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel#comment-953030

Hello again! 

Thx for the screenshot, unfortunately theres no rich text editor menu in our 7.2. Maybe because we updated the 7.1.8.

I will try if a fresh installation solves the problem...

 

Edit: 

Fresh installation didn't solve this. Do i have to enable this feature somewhere? 

Installed from "atlassian-jira-software-7.2.0-x64.bin" downloaded 26.08.16