You are right, I forgot about that issue because there are so many bugs in relation to playlist management right now. However, while testing this out I found a workaround, please see the steps below.
Fix for Engine DJ playlist disappearing after ejecting a drive:
- Create a playlist via Engine OS E.g. ‘Phat Beats’
- Fire up Engine DJ and connect the external drive
- Sync data from the external drive to Engine DJ
- Eject external drive (‘Phat Beats’ playlist will disappear)
- Create a new playlist via Engine DJ called ‘Phat Beats’
- Playlist reappears with tracks from steps 1
NB. Step 4 may not be required due to Engine DJ’s current behaviour of automatically syncing playlist data from external drives upon connection.