Ultimate Branding 'Word Change Function' not responding

Hi, I have uninstalled and deleted Ultimate Branding plugin.

The problem is with the 'Network Wide Text Change' function. This works but your cannot delete a text change once you have created it.

The check box does not accept a click and no tick appears. On click it just closes the Text change rule tab.

A database table entry is not removed when the plugin is uninstalled and deleted and the Text Changes that were set up with the plugin remain active.

The plugin I installed was via the WPMUDEV dashboard so I assume it is the most up to date.

To get my network install back to normal I had to revert to a backup made prior to installing the plugin as I had no idea where in the database the Text Change rules are stored.

Is there a way to change the howdy text and logos etc. without using this plugin?