GameSave Manager currently has an entry for SabNZBD, which I do use as a Windows service.
Service runs constantly, and GameSave Manager is unable to backup "logs" folder inside of the main SabNZBD folder while it is running:

My problem is that I have added a scheduled task to back up every game on my system, and every time it runs, GameSave Manager errors with "File listings don't match" since it is unable to access "logs" folder.

A simple solution would be to exclude this folder since it is unnecessary to run SabNZBD with restored data.