Yes. Within six months, my St Louis PM started having holes form in the corners (in addition to the straps cracking and some rub off of paint). Goyard didn't originally want to fix the defects and told me to drop off the bag in Paris or London to assess repairs for a fee.
I was persistent and they agreed to repair my bag if I paid for shipping back to Paris. When I received my bag (3+ months later, I honestly forgot I owned it at that point), my straps were replaced and they added leather corners to my bag.
I read in another thread that the corners are now available for $350 and there's currently a two month wait because they are so popular.
The downside of the leather corners is that your bag no longer is reversible (linen exterior, coated lining and leather trim), which is a look I like since I tend to wear a lot of minimalist neutrals.
I wish they would just add leather piping inside/out to reinforce the corners and make sure that the handles issues were fixed once and for all. I specifically asked about the handle issue, and I was told that they stood behind their product and would correct the issue if needed. I had issues only a few months later and Goyard's representatives were really dismissive about repairing a relatively new bag.
I was recently reminded about my bag and got all angry about the experience all over again.