Other curious thing is that I had to delete an album that was doubled, and one of the copies was removed. The second remained, both on ControlPC and iPad, but only as a 'shell'. Clicking/touching it did nothing, there were no songs associated anymore with the second copy. A reboot of MD600 got rid of the 'shell' but very strange.

My Kit: 861v8+ID41, 800v4, UHD722, MD600, MS600, MS200, Oppo BDP-203, Genesis 201, Genesis 350 SE, Genesis S4-8 Sub, BG 520i, VTL MB450 II, Krell Showcase 7, Genesis 928 Subs, Danley DTS10 sub, SVS Ultra 16 subs.