D’oh!
When I changed to the new paper, while I made all the needed updates in the HP Printer non-utility, I neglected to change the paper type under Properties in the Print menu. It was still on.........
.............wait for it.............
.........HP Premium Instant Dry Satin...............
Oh well, any day where my first problem of the day is solved before 8 in the AM is a good day!