Thanks Steve. While I couldn't get that button sequence to work, it motivated me to go back and see if there was something I could still click... turns out on that screen Emile mentioned, I selected "Output Device Selection" and reselected the Extreme. That did it. I had never selected that prompt before.
And, f me, the difference is not subtle. I was hesitant to say earlier, as I told a friend after being on the road recently for 2 months when I got back, something is missing in the system, the previous SQ magic and synergy I recall just not there, even after running things in again for a week. The feeling of catching myself looking at my phone versus being drawn in and closing my eyes, for example. More than a bit listless, etc.
IMMEDIATELY tonight upon TAS resurrection, recessed/veiled vocals reentered my room, emotional engagement returned, layered bass dynamics back, the cello rosin reappeared, could go on, but I can't wait to spend the next couple hours replaying all the tracks that I have been listening to to recalibrate and enjoy. Luckily, noone home tonight.
Not sure if in the past 2-3 months Roon took a step back, or what, just very glad TAS is up and running again. TAS was and is still is an epic accomplishment. To be able to compare right now back and forth makes it quite apparent. Thanks again.