I'd like having make a mistake but unfortunately I'm not.
but....fortunately I did
I've just discovered that with the new epson driver (16bits) there's 2 places where to specify the color management and when upgrading the driver, it has managed to change the settings in some of my saved presets and not in others.
So even though in the printer settings the Epson color mgmt is set to "No color mgmt" in another menu it was set to "colorsync" and not "Epson" ..
I just don't know why some saved presets has been changed and not the others.
I still have to test it though, but I'm pretty sure this came from that.
Stay tune for the test !
Edmund, thanks for the offer, I will test first that fix and ask you for a profile if I finally need one.
Anyway it would be a pleasure to meet and have a drink with you and Ralph some day out there