duplicity --progress not working properly

So I've been using the command duplicity ~ gdocs://my_folder_here to back up my /home folder to Google Drive periodically, and recently ran into the --progress argument that is supposed to show me the progress of the backup. However, when I tried using it, the result was very different from what I expected: it just keeps printing an empty loading bar every three seconds and ETA Stalled! and eventually the 100% bar when the backup completes.

Is there any way for me to fix this?