ID:24373 Intel Agilex 5 GTS Transceivers does not support "set_global_assignment -name PRESERVE_UNUSED_XCVR_CHANNEL OFF". If you do not want to preserve unused GTS XCVR Quads to save power, use the instance-based QSF assignment "set_instance_assignment -name PRESERVE_UNUSED_XCVR_CHANNEL OFF -to <pin_name>".Refer to the Transceiver PHY User Guide for more information.