The other issue I've been having for much longer: Whenever I add a TV series I rip individual episodes on my desktop and copy them to the core. As I go through tagging them they lose the Media sub-type tag requiring me to set it back to TV shows 2 or sometimes 3 times. Last night I happened to notice some of the older TV series rips I had tagged a few months ago lost their Media sub-type tag. I don't know if this happened during initial tagging or at some point since then.
I run into the media sub-type being cleared here on my setup too.
I can duplicate it very easily one of two ways even!
Scenario 1 There's a torrent file in the /public/data/video/* directory structure, say 'wwe-raw-12-15-2008-some-dudes-handle.avi' and I go to the core and from the kde desktop copy that to /public/data/video/(device79)/wrestling/raw-12-15-2008.avi. Notice it has gone to a different hard drive under a cleaner name. I then tag the copy.
Later I delete the original file manually in a SSH session to the core. Then in File & Media Sync, after showing files on disk that aren't in the db, I click on the filename, and then click delete file.
Now I go back to the copy I made with Files & Media Sync and in most cases the media-sub type is gone, as long as the filename is fairly close to the original. The media-sub type definitely goes away if the filenames are the same.
Scenario 2 I put an avi file into /public/data/(device79)/New Movies/ as "mymusicvideo.avi"
I then use Media and Files Sync to move that file to /public/data/(device79)/Music_Vids/
Go look at the moved file with Media and Files Sync? The media sub-type is gone. Everytime.
I've documented this before in the forums, never heard anybody else talk about it.
It took me a while to figure out why the media sub-type would disappear... it's always tied to me deleting the original torrent (which I copy from the holding area to a folder on my media drive, usually with a cleaner name, as my permanent copy) or moving a file from one directory to another (either manually or through the pluto-admin web interface).
I always write down what I'm deleting or moving and then go back over them and reset the media sub-type. Annoying but not the end of the world.