As an honest question to the group and those who might know. Is this a result of some fraction of the F.S. cards being RFID cards for TV and such?? I imagine trying to incorporate the RFID "chip" into the card could be part of the multi-layer nature of the construction of the cards. If they use the same procedure, but without the chips... maybe???? I can't recall any card I've used that was so clearly made of two distinct layers. Between the hand shuffling (that we use as a group versus machine shuffling the RFID cards probably see) might want to de-laminate these more frequently than cards that don't have this.
Mostly thinking out of my not entirely sober ass at this point, but something that has been in the back of my mind since this started to appear....