Duplicati is totally failing to run opened the next day presumably replaces this, but I think what it means is
on Options screen in Advanced options section, then run Repair, but it doesn’t appear to work well…
Quoting About → Changelog
- Removed automatic attempts to rebuild
dblockfiles as it is slow and rarely finds all the missing pieces (can be enabled with--rebuild-missing-dblock-files).
My guess about purge is it refers to The PURGE-BROKEN-FILES command as described in manual at
Recovering by purging files. Confusingly, there’s also a purge to let you purge files of your own choosing.