New Clean rekordbox deleting my usb files

So today i upgraded to rekordbox 6!

But i started with a clean and empty library so that i could import my already existing library and playlists on my DJ Usb Stick i use every weekend. Which has my complete library on it. But when i inserted my usb stick into the fresh and empty rekordbox, it started deleting all my tracks on my usb stick. Is there any way i can stop this from happening? Dont want to lose all y content on my second stick too. I just want to import the playlists from my Regular usb stick into my rekordbox PC Library.