Hi,
A number of people have had problems with "disappearing playlists" and whatnot with the recent versions of Hijack. No playlists were actually lost, but Hijack was preventing them from being seen -- a situation that is completely fixable by simply running fidsift.sh on the affected player.
Bug fixed. Hijack v347 will be released shortly, with a nice solid fix for this. I'm just waiting for a final sync + fsck to finish on my test player to verify that all is well, before passing this version on to the rest of you.
This update is recommended for EVERYONE who has ever used Hijack v343 or newer, even if that version is no longer installed on your player.
Cheers
Mark