Once you have updated to Mabui 77 and migrated your studio, go to “My Apps”. Apps that you own will be highlighted in bright red to indicate that they need to be migrated. You will also see a message asking you to migrate your apps.
Just tap on a highlighted app to migrate it. You should then see the message “Thank you – this app has now been successfully migrated to the new platform.” and the red highlight will be removed. You can then use and update your app as before.