Only showing 1/3 waveform on older usb

Hi! Im hopefull someone can help me with this.

Above picture is from a track on my usb, this used to show full waveform. I cant remember what version of rekordbox i used at the time but it has been 4,5 years. 

This is how it looks with the new tracks added that arent on the usb. Since i only have this one old usb i dont wanna do anything stupid because i dont have a backup atm.

Does anyone know what the issue is? Thank you kindly in advance