diff --git a/src/marqo/core/models/marqo_index_request.py b/src/marqo/core/models/marqo_index_request.py
index eb9175b55..d4633b0f0 100644
--- a/src/marqo/core/models/marqo_index_request.py
+++ b/src/marqo/core/models/marqo_index_request.py
@@ -46,7 +46,7 @@ class FieldRequest(StrictBaseModel):
     features: List[marqo_index.FieldFeature] = []
     dependent_fields: Optional[Dict[str, float]] = pydantic.Field(alias='dependentFields')
 
-    @root_validator
+    @root_validator(skip_on_failure=True)
     def check_all_fields(cls, values):
         marqo_index.validate_structured_field(values, marqo_index=False)
 
diff --git a/tests/tensor_search/test_api.py b/tests/tensor_search/test_api.py
index a8ed6d49c..4431485f8 100644
--- a/tests/tensor_search/test_api.py
+++ b/tests/tensor_search/test_api.py
@@ -241,3 +241,60 @@ def test_create_index_snake_case_fails(self):
                 )
 
                 self.assertEqual(response.status_code, 200)
+
+    def test_invalid_structured_index_field_type(self):
+        """Verify invalid field types are rejected with proper error"""
+
+        base_index_settings = {
+            "type": "structured",
+            "allFields": [{"name": "field1", "type": None}],
+            "tensorFields": []
+        }
+
+        test_cases = [
+            ("bulabua", "Invalid field type 'bulabua'"),
+            ([], "Invalid field type '[]'"),
+            (None, "Invalid field type 'NoneType'"),
+            ("", "Invalid field type ''"),
+        ]
+
+        for test_case, test_name in test_cases:
+            test_settings = base_index_settings.copy()
+            test_settings["allFields"][0]["type"] = test_case
+            with self.subTest(test_name):
+                index_name = 'a' + str(uuid.uuid4()).replace('-', '')
+                response = self.client.post(
+                    f"/indexes/{index_name}",
+                    json=test_settings
+                )
+                self.assertEqual(response.status_code, 422)
+                self.assertIn("allFields", response.text)
+                self.assertIn("type", response.text)
+
+    def test_invalid_structured_index_field_features(self):
+        """Verify invalid field features are rejected with proper error"""
+
+        base_index_settings = {
+            "type": "structured",
+            "allFields": [{"name": "field1", "type": "text", "features": None}],
+            "tensorFields": []
+        }
+
+        test_cases = [
+            ("bulabua", "Invalid field feature 'bulabua'"),
+            (None, "Invalid field feature 'NoneType'"),
+            ("", "Invalid field feature ''"),
+        ]
+
+        for test_case, test_name in test_cases:
+            test_settings = base_index_settings.copy()
+            test_settings["allFields"][0]["features"] = test_case
+            with self.subTest(test_name):
+                index_name = 'a' + str(uuid.uuid4()).replace('-', '')
+                response = self.client.post(
+                    f"/indexes/{index_name}",
+                    json=test_settings
+                )
+                self.assertEqual(response.status_code, 422)
+                self.assertIn("allFields", response.text)
+                self.assertIn("features", response.text)
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