Sorry no I haven't. I don't even have access to the Definitive Edition yet since I'm on PC. I just thought it might work at least similarly. On PC in the old edition, when in the Runes tab, after selecting the item, just clicking on the rune itself will extract it. Have you tried selecting the rune in the Runes tab in Crafting Panel?
That being said, I don't know what UI changes they have made to the Crafting menu.