Also, make sure that all apps are revoked. Some of them may not appear on that page. To check for that, go on your steemd page (steemd.com/@USERNAME) and look on the left for the 'Posting' section under 'Authorities'. If any app is still there, copy and paste the following url in your searchbar and replace APP by the app name. https://v2.steemconnect.com/revoke/@APP

EDIT: The problem comes from Utopian.