Cue Points not showing on PrimeGO

I have the latest version of engine prime and the latest firmware on my PrimeGo, so as an example, i synced a crate to USB which is fine, but then If I change the beat grid or change any cue points in engine prime then sync again they don’t seem to save to the USB, new tracks seem to work fine as long as I’ve beatgrided or set cue points before initial export to USB, so basically It looks any updates to tracks already on the USB aren’t updating has anyone come across this?