Duplicati Hangs after Internet Disconnect

Hi there,
I have Duplicati 2.0.3.3_beta_2018-04-02 installed (with the openmediavault plugin) on my NAS.

After setting everything up I can successfully start the backup process and files are written to AWS S3. Each night at around 3 am my ISP disconnects my internet connection and Duplicati does not recover from this.

At the top is says that my Backup is “Running …” but nothing happens.

In my log file for the backup there is nothing in the “General” section, but in the “Remote”-Tab :

27. Apr.2018 03:38: put duplicati-b6[…]a.dblock.zip.aes

That is the last line in the log and at 3:38 my ISP disconnected me for a few seconds.

What can I do that Duplicati resumes the last upload when this happens? The storage target is AWS S3.

Best regards,
Daniel