If you can't play audio files with rekordbox, check if the following applies:

- The file format is not supported by rekordbox.

- Only limited applications can play the audio file: e.g. the audio file was downloaded from Apple Music etc.

- The location of the audio file has changed.

- The music file is damaged.

For details, see [Management] and [File formats that can be loaded and

played] in the rekordbox Instruction Manual.

You can read the rekordbox Instruction Manual [rekordbox.com].

https://rekordbox.com/manual