You using two different streaming methods. Top one is using AirPlay and this is limited to 44.1/16 as you can see in the signal path it’s performing a bit depth conversion for compatibility. The bottom example is using Roons RAAT stream using the Nodes Roon Ready input. What is inconsistent is your stream here they are not the same. AirPlay is also considered lower quality by Roon as it’s not always bit perfect due to how it clocks the signal and some devices resample to adjust for this.