If you are facing any issues with the Dropbox backup feature, please try the following steps to troubleshoot the issue.
These steps might solve your problem at hand
– Deactivate the Noteshelf app from the Dropbox website under ‘Manage Devices’ & re-authenticate again from within the app.
– Try unchecking the hung up notebooks once and select them again to restart the backup process on them.
– If the above steps don’t work, go into the ‘Settings’ app of your iPad and under the Noteshelf app, turn OFF the ‘Safe Mode’. This should fix the issue for good.
Do try this out and if the issue still persists, please reach out to our support team via the in-app support portal.