ALTMULT_COMPLEX IP core: Error (272006): MGL_INTERNAL_ERROR: Range object … of width <width> which is illegal - ALTMULT_COMPLEX IP core: Error (272006): MGL_INTERNAL_ERROR: Range object … of width <width> which is illegal Description In the Intel® Quartus® Prime Standard Edition Software, you may see this error when you instantiate the ALTMULT_COMPLEX IP core in "dynamic_complex_mode," and you have different port widths for port A and port B. The dynamic complex mode option is only available for Stratix® V devices. Resolution To workaround this problem, use the same widths for both ports. This problem is fixed starting with the Intel® Quartus® Prime Standard Edition Software version 18.1 Custom Fields values: ['novalue'] Troubleshooting FB: 531970; False ['ALTMULT_COMPLEX IP'] ['FPGA Dev Tools Quartus® Prime Software Standard'] 18.1 15.0 ['Stratix® V FPGAs'] ['novalue'] ['novalue'] ['novalue']