If this happens again, then running this should fix it, IIRC:
mountvol /n
mountvol /d
mountvol /e
Yeah. It nuked Emby and Tomcat (apache, for subsonic) for me, as well.
Apparently, it removes stuff it doesn't like, without any notice. And it does it inconsistently... and without logs. It's a load of crap.
10MB/100MB/30s, on the latest public beta (as of today/last night) should get decent/good bluray playback.
At least, that's what Alex (the dev) has tested on.