Recently installed Thunderbird for Android on my Pixel 7. The migration seemed to work, however, the folders on my accounts are empty. My guess is an error in communication. The account email addresses are correct. Cannot find a setting or security setting addressing the issue. I am using OAuth2. Was never asked for a pin or password during the migration process. Just used the download on Google Play. Successfully migrated Thunderbird to my tablet. Similar issue, except after 2 days and multiple downloads it just started working. Any help would be appreciated.