use synthese option rebuilt instead of none
@@ -87,7 +87,7 @@ set_property STEPS.SYNTH_DESIGN.ARGS.RESOURCE_SHARING off [get_runs
set_property STEPS.SYNTH_DESIGN.ARGS.SHREG_MIN_SIZE 5 [get_runs synth_1]
set_property STEPS.SYNTH_DESIGN.ARGS.KEEP_EQUIVALENT_REGISTERS true [get_runs synth_1]
set_property STEPS.SYNTH_DESIGN.ARGS.NO_LC true [get_runs synth_1]
-set_property STEPS.SYNTH_DESIGN.ARGS.FLATTEN_HIERARCHY none [get_runs synth_1]
+set_property STEPS.SYNTH_DESIGN.ARGS.FLATTEN_HIERARCHY rebuilt [get_runs synth_1]
# Implementaion
set_property STEPS.OPT_DESIGN.ARGS.DIRECTIVE Explore [get_runs impl_1]
set_property STEPS.PLACE_DESIGN.ARGS.DIRECTIVE Explore [get_runs impl_1]
