Have noted the quality of some luxurious brand handbags is deteriorating. Best examples are LV and Gucci. There metal fixing is getting oxidized easily. It is now chanel.
Perhaps, the demand from China is too huge and the brands are getting loose on quality control. They produce much more than before.
I remember 10+ years ago, there was usually a waiting list for new LV products but now, it seems you can buy easily. Chanel is the same also.