Just wondering out loud,
@johnyma22 could it be possible that the magnets @confidence was playing with was so strong that it caused something to move, so whilst not directly breaking the NFC chip it was indirect. I am just remembering that a glue issue caused failure a while back maybe the magnet was so powerful it caused the glue to break and something to move.
anyway I don't know enough about the construction to be authoritative here... like I said, just thinking out loud.