diff --git a/src/core/graph/subgraph/promotedWidgetTypes.ts b/src/core/graph/subgraph/promotedWidgetTypes.ts
index b68e177438..637e367695 100644
--- a/src/core/graph/subgraph/promotedWidgetTypes.ts
+++ b/src/core/graph/subgraph/promotedWidgetTypes.ts
@@ -31,6 +31,12 @@ export interface PromotedWidgetView extends IBaseWidget {
    */
   readonly sourceNodeId: string
   readonly sourceWidgetName: string
+
+  /**
+   * Per-instance value hydration that writes only to host widget state, never
+   * cascading into the shared interior widget. Used during configure/clone.
+   */
+  hydrateHostValue(value: IBaseWidget['value']): void
 }
 
 export function isPromotedWidgetView(
diff --git a/src/core/graph/subgraph/promotedWidgetView.ts b/src/core/graph/subgraph/promotedWidgetView.ts
index 9ddec2df21..e30d6492d6 100644
--- a/src/core/graph/subgraph/promotedWidgetView.ts
+++ b/src/core/graph/subgraph/promotedWidgetView.ts
@@ -268,6 +268,16 @@ class PromotedWidgetView implements IPromotedWidgetView {
     if (state) state.label = value
   }
 
+  /**
+   * Write a value into this host's widget store entry without cascading into
+   * the shared interior widget — the only safe path for per-instance hydration
+   * during `configure()` and clone, where multiple SubgraphNode instances
+   * reference the same shared interior nodes.
+   */
+  hydrateHostValue(value: IBaseWidget['value']): void {
+    this.setHostWidgetState(value)
+  }
+
   /**
    * Returns the cached bound subgraph slot reference, refreshing only when
    * the subgraph node's input list has changed (length mismatch).
diff --git a/src/lib/litegraph/src/subgraph/SubgraphNode.ts b/src/lib/litegraph/src/subgraph/SubgraphNode.ts
index 482577cc28..aad7f9e22d 100644
--- a/src/lib/litegraph/src/subgraph/SubgraphNode.ts
+++ b/src/lib/litegraph/src/subgraph/SubgraphNode.ts
@@ -706,6 +706,12 @@ export class SubgraphNode extends LGraphNode implements BaseLGraph {
     this._applyPromotedWidgetValues(info.widgets_values)
   }
 
+  /**
+   * Hydrate per-instance promoted widget values into this host's widget value
+   * store entry. Routing through `PromotedWidgetView.set value` would cascade
+   * into the shared interior widget, stomping every other SubgraphNode
+   * instance that references the same shared interior.
+   */
   private _applyPromotedWidgetValues(
     widgetValues: ExportedSubgraphInstance['widgets_values']
   ): void {
@@ -713,10 +719,10 @@ export class SubgraphNode extends LGraphNode implements BaseLGraph {
 
     let valueIndex = 0
     for (const input of this.inputs) {
-      const widget = input._widget
-      if (!widget || !isPromotedWidgetView(widget)) continue
+      const view = input._widget
+      if (!view || !isPromotedWidgetView(view)) continue
       if (valueIndex >= widgetValues.length) return
-      widget.value = widgetValues[valueIndex]
+      view.hydrateHostValue(widgetValues[valueIndex])
       valueIndex += 1
     }
   }