How to save changes made on the Prime 4

I have a playlist made that I would like to play as a live set. While I am practicing, I make hot cues and adjust the gridding of the songs accordingly. The next time I load up my Prime 4 these changes are gone. Is there a way to save changes that are made while live mixing on the controller?

That shouldn’t be happening

What format is the drive the music is on?

ExFat or Fat32?

How much music is on the drive?

it is ExFat and it has 15GB of music on it with 3 GB free

In between sets on the prime4 do you plug the drive to Engine Prime (laptop) e.g adding more songs

I am having this same problem. Did you find a way to fix it and have the hot cues stay there?