Why it's important to understand how folder mappings work...  and an example of why it goes wrong. In this issue the poster had /downloads mapped to /mnt/cache/appdata/NZBGet/downloads/ in nzbget and in Sonarr it was mapped to /mnt/cache/appdata/NZBGet/downloads/completed/Series/ /downloads should be the same folder in both containers, change the Sonarr one to match NZBget.  Otherwise it's like this: NZBGet:  I put that file in /downloads/somefolder/ for you:  (/mnt/cache/appdata/NZBGet/dow