when i export to rekordbox.xml all file locations are missing and the files will not import to rekord box giving the error:

One or more files were not imported.
Track(s) were not imported due to the following possible reasons.
- The file path is longer than 255 characters.
- Invalid file format
- Tracks not available in your country

Tracks that were not imported

the list above is blank. the locations are correct in the MIXO playlist I am exporting.