OK, for anyone following along, the answer was to update the OS.
With Apple these days I try to avoid any new major OS version because of new bugs, but in this case it seems to have fixed an old bug.
At least this works from a different machine I updated to Sequoia, perfect color management. The long Sonoma nightmare is about to be over, and I'll be printing without cursing again.
#Lightroom #Mac #Sonoma #Apple #Epson #Photography #Printing