Yes, Ludwig, that is the bug I was talking about.

I went and checked on the Control:10 and it is correct there (and by implication on the server), the bug is only on the iPad. (Funny I hadn't noticed that, I put away the big and clunky C10 when I got the iPad control app...)

Music room: 818v3, DSP8000SE, Roon/Intel NUC, microRendu/LPS-1 into Geek Pulse Xfi into Audeze LCD-3
HT: G61R, HD621, MS600, Oppo, Avantgarde Solo
Library: MS600, Bel Canto, Mark & Daniel
Other: SonicOrbiter, GeekOut, Audeze EL-8