I've just started using Kodi with LibreELEC on my Raspberry Pi 3. I've managed to get pretty much everything set up now. I'm using a hard drive with two folders 'movies' and 'TV'. When I startup it scans for new files and add new movies or TV to their respective libraries. But it doesn't remove movies that I've deleted off of my hard drive.
Why isn't it doing this, and how can I change it?