Yah, USA Longchamp never announced that due to the different material they used in 2006 caused the bubbling problems. I found this news on a fashion forum in Taiwan. And if you tried to complain to the Longchamp headquarter in New Jersey, they will tell you they can't do anything about it.
They won't even admit that almost all the Le Pliages that made in 2006 have the same bubbling problems. I asked them if they're able to fix it. They said they don't fix bags in the US, and they will issue me a Longchamp store credit for $43 USD (like half price of my Le Pliage bag) because the color of my bag is discontinued, so they assumed I got my bag during the sale. Since they can't replace me an identical bag, they will only issue a store credit with the lowest price.
I think it's ridiculous. It doesn't even matter how much money I paid for my Le Pliage bag (Well actually I paid for the full price like £60 pounds, around $95 USD), it's more like I can't do anything with a $43 USD Longchamp store credit. Cheryl at Longchamp USA customer service was the one contacting me.. and seriously I don't understand her logic. If you can't replace me an identical bag, why wouldn't you just replace me another color that I like.. instead of giving me $43 USD store credit for no usage...