Rekordbox 2.2.0 doesn't correctly export to Datatraveler usb stick

Hi,

I've read the "read this thread... with Rekordbox" post but still face a problem when i export music to a Kingston datatravaler 16gb usb stick.

I have formatted the stick according to the manual of Pulse and at first 1 stick worked with the CDJ 850 but after a sync with Rekordbox that didn't work also. I know i formatted them correctly (HFS+) and i have Verbatim usb stick that do work with the exact same synced music.

So any help here?