rekordbox - V3.2.1 update. Here's the summary:
● A setting item is added to Preferences (*) in order to address an issue that rekordbox crashes on some computers when or after the waveform is displayed.
● Fixed an issue that some letters are scrambled and disappear.
● Fixed an issue where RELATED TRACKS were not correctly selected when using Key as a criteria.
● Fixed other minor issues.
If you have rekordbox installed, launch it and let the automatic updater do its work.
New users can find rekordbox here: http://rekordbox.com/en/download/