Can you confirm that the previous version of the Mobile SDK (adobeMobileLibrary) has been removed from your app dependencies and that you are using only the AEP SDK extensions as per the Launch Install instructions? After migration, only the new version of the SDK should be installed in your app.
I would propose you to search for "ADBMobile" and delete everything related to that. And also check that the json config file for the old sdk is completely removed. The configuration is now coming from adobe launch completely.