ok so i cant seem to gem my leatherworking past level 505 and mmo-champion says there are patterns for pvp gear and epic leg armors as well as some epic gear patterns but i havnt been able to find any of these to get past 505 and wowhead doesn't seem to know where they come form either
All the recipes tagged as "requires 425 leatherworking" are just mislabeled. There is no bug other than that they have the wrong lw level stated in the tooltip (or this is what i've heard).
I think it is a bug, because when you do purchase them and attempt to use them, instead of getting a level too low error, you get an 'item not found'. Also, you cannot sell them back sometimes, I was getting the same not found error when trying to sell back one of the two plans I purchased. One was sold back, refunding the 10 leather, but the other did not. The GM refunded all the leather I spent the next morning, which I thought was mighty quick for as flooded as they must be right now.
If it's not a bug, it sure sucks just as much as one, in getting my hopes up of getting epics so early. QQ to the MAX! lol