And @audphile1 , and @marcin_gps , i am happy to report that that Haydn track now plays through on JPLAY & BlueSound/BluOS. So some combination of the log outs and log ins and cash clearing and app updating and/or something Qobuz did has given me an uncorrupted file at last.
(I still haven’t gone back to the Miles/Sonny album to see if all of those tracks play through for now. Maybe I’ll do that right now.)

