I lost all my tags on Rekordbox

Hello,

I had all my songs taged, then I synced my USB device as usual and went to playe on CDJ. I added a few loops and cues on the USB while playing on CDJ. Later I connected my USB to the rekordbox and in sync manager pressed an arrow "CUE GRID INFO" to transfer it to my computer . After I did that all my tags disappeared. How can I recover it? It is very frustrating as it took long time to tag all tracks.

I hope there is a solution. Thank you!

Eimantas