Playlists disappeared from Samsung Media Studio,...

Question

I successfully created a number of playlists using Samsung Media Studio SMS). They transferred successfully to the K3 and are working just fine. But when I opened SMS the next time, the playlists I created and transferred were gone, although they're still on the K3. How can I get them back on SMS (other than recreating them) so I can update them (add/remove tracks)? Thanks