When trying to sign in to Google Drive for Auto Backup, you might have experienced an issue where the sign-in window disappears before you are able to input your Google Drive account details. Logging in to other accounts, such as OneDrive and Dropbox may still be completely functional, however Google Drive will not allow sign-in at all.
While we're investigating this known issue, please try the following steps and see if you are then able to login to Google Drive for Auto Backup:
- Restart the device.
- (iOS / iPadOS) First, perform a Manual Backup to backup your notes. Then, Offload the app (DO NOT Delete or Remove app): go to device Settings > General > iPad/iPhone Storage > Goodnotes > Offload App. This might take a while. After that, tap "Reinstall App". Your Goodnotes library will be placed back.
- Reinstall the Google Drive app, which hopefully resets its integration with the system and other apps.
- Go to device Settings > Safari > Clear History & Website Data, then try logging in to Auto Backup again.
If none of that helps, first backup your data via iCloud Sync or Manual backup, then re-install GoodNotes and restore your notebooks.