Description
You will not able to generate a .jbc file with ISP_REAL_TIME feature if using quartus_cpf command in Intel® Quartus® Prime Software version 22.3 and below.
This is because there is problem with quartus_cpf internal script which unable to include the ISP_REAL_TIME feature into the generated .jbc file.
Resolution
This problem is fixed starting from Intel® Quartus® Prime Software version 22.4.