According to the upstream Change Log https://duplicity.gitlab.io/stable/CHANGELOG.html Version 2 introduced regressions from version 1.2.3 Specifically options to not cross filesystem boundaries when taking backups and to make a full backup when the "current" full backup becomes older than a specified amount. These and other errors are fixed in 2.1.4. 2.1.4 has been in portage for well over 30 days. I keyworded 2.1.4 and verified that it does fix my observed issues. Reproducible: Always
x86 done
amd64 done all arches done