Trying to upgrade from 2.2 to 2.2.1 through automatic upgrade. I have deactivated Contact Form 7 and the upgrade never completes and there are no errors displayed. I've waited for over 10 minutes, without any upgrade success. If I go back the plugin page, 2.2 is still showing as installed, with 2.2.1 available for upgrade. Do I have to delete the Contact Form 7 from the plugin folder manually and upload the new version? If yes, won't that delete my existing forms?