Hi Christiaan, it’s a long time since I last asked for help. Lexicon worked pretty well for me, although I had to delete the database of Engine DJ before I got the right results when syncing to it. But now the strangest thing happens: although I delete the database of Engine DJ before syncing, I get a complete mess. The playlists show the wrong tracks and also the number of tracks aren’t right. I usew the latest version of Lexicon and Engine DJ 3.3. When syncing to Rekordbox everything seems to be in order. So what could be wrong? (P.s. Would you mind having this conversation in dutch?)
Can you PM me screenshots of what you mean exactly? Feel free to do it in Dutch 
…seems similar to my current issue (somewhat anyway).
Hi, what helped for me: always first sync to your computer and after that sync to your external drive. I haven’t had problemen since doing that (knock on wood).