diff --git a/litellm/proxy/guardrails/usage_tracking.py b/litellm/proxy/guardrails/usage_tracking.py
index 4c8222f52ab..b2ba6ec9ec5 100644
--- a/litellm/proxy/guardrails/usage_tracking.py
+++ b/litellm/proxy/guardrails/usage_tracking.py
@@ -356,12 +356,12 @@ async def process_spend_logs_guardrail_usage(
             "flagged_count": 0,
         }
     )
-    index_rows_by_key: Final[dict[tuple[object, object], dict[str, object]]] = {}
+    index_rows_by_key: Final[dict[tuple[str, str], dict[str, object]]] = {}
 
     for payload in logs_to_process:
         request_id = payload.get("request_id")
         start_time = _parse_payload_start_time(payload)
-        if not request_id or start_time is None:
+        if not isinstance(request_id, str) or not request_id or start_time is None:
             continue
         date_key = _date_str(start_time)
 
@@ -370,13 +370,14 @@ async def process_spend_logs_guardrail_usage(
             {
                 e["guardrail_name"]: e["guardrail_id"]
                 for e in entries
-                if e.get("guardrail_id") and e.get("guardrail_name")
+                if e.get("guardrail_id") and isinstance(e.get("guardrail_name"), str)
             }
         )
         for entry in entries:
-            guardrail_name = entry.get("guardrail_name") or ""
+            raw_name = entry.get("guardrail_name")
+            guardrail_name = raw_name if isinstance(raw_name, str) else ""
             guardrail_id = entry.get("guardrail_id") or ids_by_name.get(guardrail_name) or guardrail_name
-            if not guardrail_id:
+            if not isinstance(guardrail_id, str) or not guardrail_id:
                 continue
             action = guardrail_status_to_action(entry.get("guardrail_status"))
             if action != "not_run":
diff --git a/tests/test_litellm/proxy/guardrails/test_usage_tracking.py b/tests/test_litellm/proxy/guardrails/test_usage_tracking.py
index 58479d3d740..56a8bf2f0b0 100644
--- a/tests/test_litellm/proxy/guardrails/test_usage_tracking.py
+++ b/tests/test_litellm/proxy/guardrails/test_usage_tracking.py
@@ -405,6 +405,27 @@ async def test_not_run_entry_shares_index_key_with_evaluated_sibling_of_same_nam
     assert (metrics_create["guardrail_id"], metrics_create["requests_evaluated"]) == ("cf-uuid", 1)
 
 
+@pytest.mark.asyncio
+async def test_malformed_not_run_entry_does_not_drop_the_batch():
+    prisma = _prisma()
+    payload = _payload("r1")
+    payload["metadata"] = json.dumps(
+        {
+            "guardrail_information": [
+                {"guardrail_name": ["not", "a", "string"], "guardrail_status": "not_run"},
+                {"guardrail_name": "cf", "guardrail_id": "cf-uuid", "guardrail_status": "success"},
+            ]
+        }
+    )
+
+    await process_spend_logs_guardrail_usage(prisma, [payload])
+
+    index_rows = prisma.db.litellm_spendlogguardrailindex.create_many.call_args.kwargs["data"]
+    assert [row["guardrail_id"] for row in index_rows] == ["cf-uuid"]
+    metrics_create = prisma.db.litellm_dailyguardrailmetrics.upsert.call_args.kwargs["data"]["create"]
+    assert metrics_create["requests_evaluated"] == 1
+
+
 @pytest.mark.asyncio
 async def test_batch_of_only_not_run_entries_writes_no_metrics_row():
     prisma = _prisma()