diff --git a/src/main/java/org/opensearch/neuralsearch/processor/InferenceProcessor.java b/src/main/java/org/opensearch/neuralsearch/processor/InferenceProcessor.java
index 23d5df60a..d01f788ff 100644
--- a/src/main/java/org/opensearch/neuralsearch/processor/InferenceProcessor.java
+++ b/src/main/java/org/opensearch/neuralsearch/processor/InferenceProcessor.java
@@ -285,7 +285,7 @@ private void createInferenceListForMapTypeInput(Object sourceValue, List<String>
         if (sourceValue instanceof Map) {
             ((Map<String, Object>) sourceValue).forEach((k, v) -> createInferenceListForMapTypeInput(v, texts));
         } else if (sourceValue instanceof List) {
-            texts.addAll(((List<String>) sourceValue));
+            ((List<String>) sourceValue).stream().filter(Objects::nonNull).forEach(texts::add);
         } else {
             if (sourceValue == null) return;
             texts.add(sourceValue.toString());
diff --git a/src/test/java/org/opensearch/neuralsearch/processor/InferenceProcessorTests.java b/src/test/java/org/opensearch/neuralsearch/processor/InferenceProcessorTests.java
index cd2d0816a..d08ec495a 100644
--- a/src/test/java/org/opensearch/neuralsearch/processor/InferenceProcessorTests.java
+++ b/src/test/java/org/opensearch/neuralsearch/processor/InferenceProcessorTests.java
@@ -66,7 +66,7 @@ public void test_batchExecute_emptyInput() {
         verify(clientAccessor, never()).inferenceSentences(anyString(), anyList(), any());
     }
 
-    public void test_batchExecute_allFailedValidation() {
+    public void test_batchExecuteWithEmpty_allFailedValidation() {
         final int docCount = 2;
         TestInferenceProcessor processor = new TestInferenceProcessor(createMockVectorResult(), BATCH_SIZE, null);
         List<IngestDocumentWrapper> wrapperList = createIngestDocumentWrappers(docCount);
@@ -79,6 +79,32 @@ public void test_batchExecute_allFailedValidation() {
         assertEquals(docCount, captor.getValue().size());
         for (int i = 0; i < docCount; ++i) {
             assertNotNull(captor.getValue().get(i).getException());
+            assertEquals(
+                "list type field [key1] has empty string, cannot process it",
+                captor.getValue().get(i).getException().getMessage()
+            );
+            assertEquals(wrapperList.get(i).getIngestDocument(), captor.getValue().get(i).getIngestDocument());
+        }
+        verify(clientAccessor, never()).inferenceSentences(anyString(), anyList(), any());
+    }
+
+    public void test_batchExecuteWithNull_allFailedValidation() {
+        final int docCount = 2;
+        TestInferenceProcessor processor = new TestInferenceProcessor(createMockVectorResult(), BATCH_SIZE, null);
+        List<IngestDocumentWrapper> wrapperList = createIngestDocumentWrappers(docCount);
+        wrapperList.get(0).getIngestDocument().setFieldValue("key1", Arrays.asList(null, "value1"));
+        wrapperList.get(1).getIngestDocument().setFieldValue("key1", Arrays.asList(null, "value1"));
+        Consumer resultHandler = mock(Consumer.class);
+        processor.batchExecute(wrapperList, resultHandler);
+        ArgumentCaptor<List<IngestDocumentWrapper>> captor = ArgumentCaptor.forClass(List.class);
+        verify(resultHandler).accept(captor.capture());
+        assertEquals(docCount, captor.getValue().size());
+        for (int i = 0; i < docCount; ++i) {
+            assertNotNull(captor.getValue().get(i).getException());
+            assertEquals(
+                "list type field [key1] has null, cannot process it",
+                captor.getValue().get(i).getException().getMessage()
+            );
             assertEquals(wrapperList.get(i).getIngestDocument(), captor.getValue().get(i).getIngestDocument());
         }
         verify(clientAccessor, never()).inferenceSentences(anyString(), anyList(), any());
diff --git a/src/test/java/org/opensearch/neuralsearch/processor/TextEmbeddingProcessorIT.java b/src/test/java/org/opensearch/neuralsearch/processor/TextEmbeddingProcessorIT.java
index 8fd87f091..4afa4031d 100644
--- a/src/test/java/org/opensearch/neuralsearch/processor/TextEmbeddingProcessorIT.java
+++ b/src/test/java/org/opensearch/neuralsearch/processor/TextEmbeddingProcessorIT.java
@@ -310,5 +310,14 @@ private void ingestBatchDocumentWithBulk(String idPrefix, int docCount, Set<Inte
         );
         assertEquals(!failedIds.isEmpty(), map.get("errors"));
         assertEquals(docCount, ((List) map.get("items")).size());
+
+        int failedDocCount = 0;
+        for (Object item : ((List) map.get("items"))) {
+            Map<String, Map<String, Object>> itemMap = (Map<String, Map<String, Object>>) item;
+            if (itemMap.get("index").get("error") != null) {
+                failedDocCount++;
+            }
+        }
+        assertEquals(failedIds.size(), failedDocCount);
     }
 }
diff --git a/src/testFixtures/java/org/opensearch/neuralsearch/BaseNeuralSearchIT.java b/src/testFixtures/java/org/opensearch/neuralsearch/BaseNeuralSearchIT.java
index 7ad0e63f8..e6fb45d2a 100644
--- a/src/testFixtures/java/org/opensearch/neuralsearch/BaseNeuralSearchIT.java
+++ b/src/testFixtures/java/org/opensearch/neuralsearch/BaseNeuralSearchIT.java
@@ -203,6 +203,7 @@ protected void loadModel(final String modelId) throws Exception {
             isComplete = checkComplete(taskQueryResult);
             Thread.sleep(DEFAULT_TASK_RESULT_QUERY_INTERVAL_IN_MILLISECOND);
         }
+        assertTrue(isComplete);
     }
 
     /**