I am seeing a similar problem, where remove-all-but-n-full using the multi backend is not working, but works when using the individual backends directly. That is
duplicity remove-all-but-n-full 1 --force "multi:///etc/duplicity.json?mode=mirror&onfail=abort"
removes no files in any backend, but e.g.
duplicity remove-all-but-n-full 1 --force rsync://backupuser@backupserver://tank/backups/data
works fine.
Logs provided as requested.
I am seeing a similar problem, where remove- all-but- n-full using the multi backend is not working, but works when using the individual backends directly. That is
duplicity remove- all-but- n-full 1 --force "multi: ///etc/ duplicity. json?mode= mirror& onfail= abort"
removes no files in any backend, but e.g.
duplicity remove- all-but- n-full 1 --force rsync:/ /backupuser@ backupserver: //tank/ backups/ data
works fine.
Logs provided as requested.