For anyone else who runs into this problem, the category name you select for nzbget in the drone configuration appears to be case sensitive. I spent the past 2 hours trying to figure out why I couldn’t get completed download working with nzbget.
I had “tv” entered as the category name in Drone instead of “TV” (in nzbget) which was breaking the interaction between them. All Drone could do was dump episodes to nzbget, it wasn’t interacting otherwise. Of course in the past I had never noticed the problem because my Drone Factory directory was the same as the category dir in nzbget.
Switching it up to the proper case spelling fixed the issue and now completed download handling is working fine between them.