I ran into the same issue, but upgrading to 0.8.19 didn't fix it.
I've put in a new bug for this: https://bugs.launchpad.net/ubuntu/+source/duplicity/+bug/1930640
I ran into the same issue, but upgrading to 0.8.19 didn't fix it.
I've put in a new bug for this: https:/ /bugs.launchpad .net/ubuntu/ +source/ duplicity/ +bug/1930640