XDJ1000MK2 not loading CUES when connected to Rekordbox

Hello ! I'm having some troubles with a recently acquired setup (xdj1000mk2 x 2 + djm750mk2) when connected to computer. They are all connected through USB (with a USB hub) , and correctly set to each Rekordbox decks.

When loading a track, no matter through Recordbox, through the XDj, or even through the Track Search button, it takes 2 or 3 attempt for the XDJ to load my cues and display them on screen. They are correctly set up on Recordbox, and loaded there, but the player doesn't reconize them all the time.

I do not have this problem when using a USD drive on the player.

See the following video :
https://streamable.com/ho8vtl

I do a lots of mashups so when I prepare a set with a lot of them I like to set my cues directly in my rekordbox library on my computer and then I play with the XDJ, but that little bug is becoming annoying as I always have to reload the songs, as they are not properly appearing. Could this be a USB hub problem ? Or is there a setting I'm missing ?

Thanks !