I have just flashed my Muse Luxe with SqueezeLite ex the Squeezelite-ESP32 Installer installer. Version is muse-1650.
Is the 3.5mm audio jack supported with this firmware ? And if so, can you confirm it is setup as an INPUT (source) jack ? The Web UI (under Audio > General Audio Options) implies that the default purpose of jack is for a SubWoofer which would indicate that jack is intended for OUTPUT rather than input…
Monitoring the logs, I see no event messages presented about jack insertions or changing audio source.