Warning: Ignored Maximum Fan-Out assignment - Warning: Ignored Maximum Fan-Out assignment Description When compiling a Stratix® 10 EMIF IP example design in the Quartus® Prime Software Pro version 18.1, you may see a similar warning as shown below. Warning: Ignored Maximum Fan-Out logic option for node "ed_synth_inst|dut|dut|arch|arch_inst|hmc_avl_if_inst|amm.ready_0_hyper_regs.amm_ready_0_r1~SynDup" Note that the hierarchy path of the amm_ready_0_r1~SynDup signal may differ for a given design. This warning doesn’t affect design functionality and can be ignored. Resolution This issue has been fixed in Quartus® version 19.1 and onward. Custom Fields values: ['novalue'] Troubleshooting 593543 False ['External Memory Interfaces Stratix® 10 FPGA IP'] ['FPGA Dev Tools Quartus® Prime Software Pro'] 19.1 18.1 ['Stratix® 10 FPGAs and SoCs'] ['novalue'] ['novalue'] ['novalue']