So our SA has asked us to bring in the shoes and the puzzle bag for them to take a look, and they would also inform their aftersales team of the issue. I told her that it's clearly an issue of production and not wear and tear since it's so new, and she actually said that for my pair I should wear it anyway and "see what happens" since they don't have a return policy beyond the usual (14 days I think) and this is beyond that window. I will still keep my pair unworn until they have a look at my sister's pair in person because I truly believe they may need to initiate some sort of recall if this is a broad issue.