Duplicate playlist in EngineDJ?

ok - so i make playlist in enginedj, cues etc…sync to usb…on prime go I change cues etc…

…sync back to enginedj…duplicate tracks appear in playlist…and they have different cues (before and after).

How can I simply sync from enginedj <> usb <> prime go…seems bugs/quirks each time I go either way.

I don’t want engineDJ to auto sync to the usb key either - I want to click bottom left and control this.

If I do work on hardware / usb…before plugged back in enginedj do I have to delete playlist in enginedj before syncing from usb? that would be silly - so why does it duplicate?

Also, is there a way to change beatgrids on the prime go hardware?