Two other posts concerning potential issues when flashing “0 KB” images:
WTS : Flashing adapters for Attiny1616 drivers (Sofirn/Wurkkos/Firelylite) - #33 by thefreeman
WTS : Flashing adapters for Attiny1616 drivers (Sofirn/Wurkkos/Firelylite) - #34 by SammysHP