@KevinB
Hi ,
today i updated my Surround Speakers on the Bar.All works fine.What i also did i,opened ports for the bar in my router ,and now i see my bar in the apple home app.Connected via airplay on my iphone,plays all music.
Changed my HDMI connections as you described,also all good.
Will test everything during the weekend.So guys try to play a little bit with all the updates given on the KLIPSCH site, step by step.Its sad that KLIPSCH cant provide a full working all-in-one update but for the 1st ,i think that way is also successfull.
good luck