Since begining of may I had some issues with NFC payments which manifested themselves by terminals printing out receipts with error messages that consisted of box drawing characters interspersed with random letters. I though that it was caused by the card expiring in may and not allowing NFC payments in the last month and that it was somehow feature, only after seeing the message in correct encoding I realized, that it was user error as I had both old and unactivated new card in my wallet.