diff --git a/json_loader_dynamic.py b/json_loader_dynamic.py
index e275735..8a10b02 100644
--- a/json_loader_dynamic.py
+++ b/json_loader_dynamic.py
@@ -63,6 +63,8 @@ if PromptServer is not None:
             seq = 1
         data = read_json_data(json_path)
         target = get_batch_item(data, seq)
+        if not data:
+            return web.json_response({"keys": [], "types": [], "error": "file_not_found"})
         keys = []
         types = []
         if isinstance(target, dict):
diff --git a/pyproject.toml b/pyproject.toml
index 1e5ab8a..499145a 100644
--- a/pyproject.toml
+++ b/pyproject.toml
@@ -1,6 +1,6 @@
 [project]
 name = "comfyui-json-dynamic"
-version = "1.2.0"
+version = "1.2.1"
 description = "ComfyUI nodes for dynamic JSON loading and string/path utility operations"
 license = { file = "LICENSE" }
 requires-python = ">=3.10"
diff --git a/web/json_dynamic.js b/web/json_dynamic.js
index 7073bba..df7b70a 100644
--- a/web/json_dynamic.js
+++ b/web/json_dynamic.js
@@ -39,7 +39,14 @@ app.registerExtension({
                 const resp = await api.fetchApi(
                     `/json_dynamic/get_keys?path=${encodeURIComponent(pathWidget.value)}&sequence_number=${seqWidget?.value || 1}`
                 );
-                const { keys, types } = await resp.json();
+                const data = await resp.json();
+                const { keys, types } = data;
+
+                // If the file wasn't found, keep existing outputs and links intact
+                if (data.error === "file_not_found") {
+                    console.warn("[JSONDynamicLoader] File not found, keeping existing outputs:", pathWidget.value);
+                    return;
+                }
 
                 // Store keys and types in hidden widgets for persistence
                 const okWidget = this.widgets?.find(w => w.name === "output_keys");