Blizzard has announced that crafting Enchanting Vellums have been disabled to fix a bug. This «bug» likely includes a fix for an exploit which allows crafters to only proc rank 3 enchants.
We’ve temporarily disabled the creation of Enchanting Vellums, while we diagnose and fix a bug.We hope to develop and deploy the fix in the next 24 hours. Until then, Enchanters can enchant items directly or use existing Enchanting scrolls, they just won’t be able to make new scrolls.Thank you for your patience and understanding.. Read more on wowhead.com