Internal Error: Sub-system: QCU, File: /quartus/comp/qcu/qcu_qis_utility.cpp, Line: 1673 - Internal Error: Sub-system: QCU, File: /quartus/comp/qcu/qcu_qis_utility.cpp, Line: 1673 Description Due to a problem in the Quartus® Prime Pro Edition Software version 25.3 or earlier, you might see this internal error when you run Start Standard to Pro Lint . Resolution To work around this problem in the Quartus® Prime Pro Edition Software version 25.1.1, download and install the patch below. This problem is fixed beginning with the Quartus® Prime Pro Edition Software version 25.3.1. Custom Fields values: ['novalue'] Troubleshooting 15018377277 novalue ['novalue'] ['FPGA Dev Tools Quartus® Prime Software Pro'] 25.3.1 25.1.1 ['Agilex™ 3 FPGAs and SoCs', 'Agilex™ 5 FPGAs and SoCs', 'Agilex™ 7 FPGAs and SoCs', 'Agilex™ 9 FPGAs and SoCs', 'Arria® 10 FPGAs and SoCs', 'Cyclone® 10 GX FPGA', 'Stratix® 10 FPGAs and SoCs'] ['novalue'] ['novalue'] ['novalue']