After I reboot the DS, all is well. I can use either the remote or my old eLyric control point on my iPad to change inputs etc.
If I leave the DS set on the USB input for a certain amount of time (let’s say at least 12-15 hours, might be longer), whether or not music is constantly playing, I can’t do anything with the remote or the iPad. (eLyric on the latter looks like I’ve changed to the Bridge or the coax input, but nothing has really happened.) The USB input continues to work, but I can’t change to another without power cycling the DS.
I don’t know if this happens if I leave it on the Bridge or the coax input. (The Bridge won’t go the requisite amount of time without losing its connection or just deciding to take a vacation [yes, can’t get Bridge II soon enough] and I just never tried with coax, which I hardly ever use now.)
I’m running firmware 1.16. Perhaps relevant (or not) is the fact that I leave the display turned off unless I need it for something specifically, which is rare. Any ideas? I don’t like power cycling the DS unnecessarily.