Frontend and backend are showing different data

Hi all,

I have imported contacts from a Google account and myContacts appears now in the list of groups. I found that is not possible up to now to delete a contact group, so I decided to “hack” the database behind nc.

I searched all entries in datatable oc_cards_properties with name=‘CATEGORIES’ and ‘myContacts’ in field value. All entries were updated with removed ‘myContacts’.

But myContacts is still showing up in the list of groups and it is not empty. In the frontend nothing has changed. How can this happen? There are significant differences in content between frontend and backend now. Is there a buffer to sync in between or what is going on here?