diff --git a/src/components/CustomJsonSchemaBridge.tsx b/src/components/CustomJsonSchemaBridge.tsx
index 3e27e63af..943472930 100644
--- a/src/components/CustomJsonSchemaBridge.tsx
+++ b/src/components/CustomJsonSchemaBridge.tsx
@@ -7,10 +7,6 @@ import JSONSchemaBridge from 'uniforms-bridge-json-schema';
  * based on the incoming model data
  */
 export class CustomJsonSchemaBridge extends JSONSchemaBridge {
-  constructor(schema: any, validator: any) {
-    super(schema, validator);
-  }
-
   getField(name: string): Record<string, any> {
     const field = super.getField(name);
     const { defaultValue, description, ...props } = field;
diff --git a/src/components/VisualizationStepViews.tsx b/src/components/VisualizationStepViews.tsx
index 5171277cf..6dbc0cbce 100644
--- a/src/components/VisualizationStepViews.tsx
+++ b/src/components/VisualizationStepViews.tsx
@@ -202,6 +202,7 @@ const VisualizationStepViews = ({
                         type: 'object',
                         properties: stepPropertySchema,
                         required: step.required,
+                        default: stepPropertyModel,
                       }}
                       configuration={stepPropertyModel}
                       parametersOrder={parametersOrder}