Lightning DS in Auarlic Mini has MQA setting. When you enable this feature, eg Pass through, the lighting DS will not unfold the first level of MQA and direct pass to Full decoder of DAC ( make sure your DAC is full decoder ). If the DAC is a full decoder, the dac will unfold the core and the other 2 layer to get highest sampling rate of the MQA files. If you don't set pass through, the player will unfold the first layer. Your said song , i have tested it in my DSC NB and non MQA DAC, it should unfold the core only to get 88.k and pass to dac. However, you case is very strange. if you don't change everything, why this one is still 44.1k and the other is ok?
Here below is the instruction from the lightning DS.
‘MQA Pass-through’: When enabled this setting will pass the original music signal through your streaming device without making any changes allowing an external DAC to use its own decoding functions. Use this option when connected to an MQA-enabled DAC for example. (You may also need to disable the volume control function of your streaming device or set the volume to 100 to ensure full-level pass-through of the signal.)
‘Decoding Method’: AURALiC streaming devices are capable of decoding MQA files using AURALiC’s proprietary resampling and de-blurring method. You can select from the sampling rate settings for the process described here. Please note that this process is not an MQA-created or MQA-licensed process.
‘Auto’: Your streaming device will detect the best decoding sampling rate based on the information in the MQA file. It will also detect the maximum sampling rate of a USB-connected DAC.
‘2x Sampling Rate’: Your streaming device will always decode MQA files at 88.2 kHz or 96 kHz depending on the original file’s sampling rate.
‘4x Sampling Rate’: Your streaming device will always decode MQA files at 176.4 kHz or 192 kHz depending on the original file’s sampling rate.
‘8x Sampling Rate’: Your streaming device will always decode MQA files at 352.8 kHz or 384 kHz depending on the original file’s sampling rate.