XDJ-RX 2 endlessly loading tracks when using thumb drive

So this is the 2nd time this has happened where I’ll be playing a set and halfway through I’ll go to load a song onto my left deck and it will just endlessly load. It’s not just one song that it’s doing it with once it starts with the loading it won’t load any song I try to put on that deck and it’s driving me crazy that I have to restart my controller mid set please help with a fix for this