Those details are helpful, George.
I received the 2019 MacBook Pro w/ 10.14.5 and played Roon out for >20 hours (over USB-C ASIO) with zero issues. Yeah!
I have four separate listening “stations” with different use-case, equipment, wiring, etc. Deciding how to update the systems and what products to consider was seriously complex. I’m happy, and a bit surprised how straightforward the final setup ended up. As it relates to Roon, we have: Large WAV library/Tidal > Roon > MacBook Pro > AISO > exaSound e32.
It sounds great - versatile, apparent value for dollars - sans magic. I never imagined I’d enjoy music as much as I expect to now.
A minor niggle I’m working on is a MacOS Roon Bridge issue