SG: Fix event file path so that it reads the path in the input file i…

…f available

modules/Workflow/whale/main.py

@@ -1756,14 +1756,17 @@ def perform_regional_mapping(self, AIM_file_path, assetType, doParallel=True):
         for input_ in reg_mapping_app.inputs:
             if input_['id'] == 'assetFile':
                 input_['default'] = str(AIM_file_path)
+
+        # Get the event file path
+        eventFilePath = self.shared_data.get('RegionalEvent', {}).get('eventFilePath', self.reference_dir)
 
         reg_mapping_app.inputs.append(
             {
                 'id': 'filenameEVENTgrid',
                 'type': 'path',
                 'default': resolve_path(
                     self.shared_data['RegionalEvent']['eventFile'],
-                    self.reference_dir,
+                    eventFilePath,
                 ),
             }
         )