E8305 issue

Hi

I have two CDJ3000 connected to my mac book pro 13.3. 2016 model with intel quad core i7.

Been using Rekordbox with no issues, just updated to latest version 6.6.3 and latest firmware update 2.02. but since then, I get the error code E8305 on one player only, the other player will still play songs.

It does not matter if I even try to play the same track. I did re install the firmware again on the player with the code, which then makes this player work, but then get the error code on the other player which previously worked and just keeps flipping over with the error code when firmware is re installed.

Any ideas how this can be resolved