I am not sure where to turn but I have ticks in all the music. It is present using either iTunes or JRiver MC19.0.127 as well as earlier versions.
I reinstalled the USB 2.0 driver and it did not change anything. I also powerdown the PWD MKII and then restarted it to reinitialize the PWD.
No Change. I am not sure what changed.
Maybe try uninstalling and reinstalling? Or roll back to a older firmware version?