The advanced EQ device list kept the green-dot selection on the last connected Bluetooth device after it disconnected, instead of falling back to the default preset. - MainActivity.kt: onAudioDevicesRemoved recomputed the active output device via AudioManager.getDevices(), which can still momentarily report the just-removed sink (observed on Bluetooth A2DP). Removed device ids are now excluded explicitly instead of trusting getDevices() to already be current. - estado_ecualizador.dart: cambiarMultiDeviceEnabled() re-seeds dispositivoActualId from a fresh query when the toggle turns back on, matching cargarPersistido(), so a stale id from before the toggle flip can't leave the dot pinned to a disconnected device.