I use a lot of RPi + Amp2 (one per room) under Hifiberry OS to provide squezebox + Airplay + Bluetooth capability to my children (and other room users).
In one particular room there was also a request for an analogue input. So I removed the Amp2 and replaced it with a DAC+ ADC Pro and a AAmp60.
Then HifiBerry OS behavior became strange…: as soon as the Analog input is on, the squeezebox disappears from LMS, as if Squeezelite was deactivated (which is not the case in HifiBerry OS, of course). Changing the source arrangement or the Start When Signal Detected feature doesn’t change anything.
Is that normal?