Despite my earlier comment about not using Duplicati after this, I actually like it. When it works it is great. I use it at work and it has saved the day twice so far with ransomware striking some laptops. However when it doesn’t work, it is an absolute nightmare to fix not helped by the high stress of needing those backups restored asap.
I badly need a tool that allows me to navigate the backups, flag a file and extract it without needing the entire database rebuilt and in perfect health. I am quite certain that there is nothing wrong with the backup where my files are but faults elsewhere in it are blocking my attempts to retrieve them.