RX3 Link Not Showing Up on Unit

Hi, 

For some reason I can no longer export from rekordbox to the RX3 from my computer. This is happening on at 2 other RX3 units. The RX3 units does not show the option in the source mode even though the computer shows the link option and the two boxes down the bottom to click and drag on to the left or right deck. I am guessing this a bug in new rekordbox software as it never happened before.