XDJ RX2 Issues with Rekordbox 6.5.3

Hello Pioneer,

I have Issues with the New Rekordbox 6.5.3 Update to describe my Issue.. i am Using the XDJ RX2 with Rekordbox Link the Issues i am Having is that my XDJ RX2 won't show the Key on the left side of the RX2, it does work when i use USB. 

To figure out whether it is Rekordbox or not i tried using another Cable and also, i Tried to Reinstall the Link Driver and nothing Changed at all. I also Tried another Rekordbox Version which is 6.5.1 and it Works just fine like before so there most be something wrong with the New Update cause i haven't changed anything since.

Is the Anything known about this Issue?