FIX: args native API create EM target design (#6840)

Co-authored-by: pyansys-ci-bot <[email protected]>

Author: gmalinve

doc/changelog.d/6840.fixed.md

@@ -0,0 +1 @@
+Args native API create EM target design

src/ansys/aedt/core/application/design.py

@@ -2470,13 +2470,15 @@ def create_em_target_design(self, design, setup=None, design_setup=None):
             raise AEDTRuntimeError("Source design type must be 'HFSS', 'Maxwell' or 'Mechanical'.")
         if design not in ["Icepak", "Mechanical"]:
             raise AEDTRuntimeError("Design type must be 'Icepak' or 'Mechanical'.")
+        design_setup_args = ["NAME:DesignSetup", "Sim Type:="]
         if design == "Icepak":
             design_setup = design_setup or "Forced"
             if design_setup not in ["Forced", "Natural"]:
                 raise AEDTRuntimeError("Design setup must be 'Forced' or 'Natural'.")
+            design_setup_args.append(design_setup)
         if not setup:
             setup = self.nominal_adaptive
-        self.odesign.CreateEMLossTarget(design, setup, design_setup)
+        self.odesign.CreateEMLossTarget(design, setup, design_setup_args)
         return True
 
     @pyaedt_function_handler()