I just started using Rekordbox a week or so ago and I was having almost no problems with it until I updated to 5.8.0.
The majority of the time my imported tracks fail to analyze. It doesn't matter if it's a big queue of tracks or only 1, the imported songs sit at 0%. And if I try to do almost anything while this is going on (deleting a track, changing settings, dragging a track in to set cue points) the program stops responding and it completely locks up.
I tried uninstalling and reinstalling the program twice and it didn't help at all. I played around with the settings as much as I could and again, nothing,
I'm running Windows 10 on a machine that could handle any other track collection/DJ program and it was running Rekordbox just fine until now. I would really like to get this working again as I'm having a blast using Rekordbox cues on my XDJ-1000MK2's but the actual program has become a nightmare to work with.