It was just by chance that yesterday I answered another RFID question mentioning your THM3060 board and reminded me to check out if your have already solved your problem. BTW, I have also updated my python RFID program. As in earlier version, it is CPR - Copy, Paste, Run, no library to import. Ref (1) Can RFID read stacked cards?
https://electronics.stackexchange.com/questions/519993/can-rfid-read-stacked-cards
https://electronics.stackexchange.com/questions/519993/can-rfid-read-stacked-cards