Nora - too many devices

I was trying to change my Nora token, and now have an issue, as it's doubled, tripled, and finally quadrupled the amount of devices I have.

I only have the one nora config within node-red, but if I check https://node-red-google-home.herokuapp.com/ I see my devices duplicated within the list shown, albeit with different 'group' names.

How do I delete the unneeded groups and/or delete the extra devices?