Thanks Deuch. That would make sense since I just got my Aries G2 a week ago and have only been using via Lightning Link.
Assuming no others with the combo of Aries/Vega G2 and Leo has problems switching streaming output between Lightning and USB, perhaps my unit is not working properly.
I have to admit that I am a bit disappointed on the QC of their top of the line products since when I first got my Vega G2, I also had to ship that one back to Auralic since the output signal to amp would cut out anywhere after 5 minutes of playing to a couple hours. Auralic advised that there was some issue with software installation on one of the drivers.
If I have to return the Aries for repair, that will be 2 for 3 components that had to be returned due to some manufacturing issue. So far Leo have not given any problems but Leo is also relatively new (as in 2-3 weeks old) so hopefully no issues will pop up there.
I will have to place a call to my dealer since this does not seem normal.