diff --git a/tensorrt_llm/_torch/models/modeling_deepseekv3.py b/tensorrt_llm/_torch/models/modeling_deepseekv3.py
index accb27ef310a..6e2b4b532f49 100755
--- a/tensorrt_llm/_torch/models/modeling_deepseekv3.py
+++ b/tensorrt_llm/_torch/models/modeling_deepseekv3.py
@@ -340,7 +340,7 @@ def split_kv_b_proj(kv_b_proj: torch.Tensor,
         # preserved as `_ckpt_num_nextn_predict_layers`.
         ckpt_num_nextn_predict_layers = (
             getattr(self.config, '_ckpt_num_nextn_predict_layers', None)
-            or self.config.num_nextn_predict_layers)
+            or getattr(self.config, 'num_nextn_predict_layers', None))
 
         def detect_shared_mtp_weights() -> bool:
             # Detect if MTP layers share checkpoint weights (model has more MTP
@@ -348,7 +348,8 @@ def detect_shared_mtp_weights() -> bool:
             # multiple model MTP layers map to the same checkpoint layer via
             # modulo, and mark_consumed must be skipped to avoid deleting
             # weights that later MTP layers still need.
-            model_nextn = self.config.num_nextn_predict_layers or 0
+            model_nextn = getattr(self.config, 'num_nextn_predict_layers',
+                                  None) or 0
             return model_nextn > (ckpt_num_nextn_predict_layers or 0) > 0
 
         has_shared_mtp_weights = detect_shared_mtp_weights()
diff --git a/tests/integration/test_lists/waives.txt b/tests/integration/test_lists/waives.txt
index 9237ef23835d..2ae8ca7c2a58 100644
--- a/tests/integration/test_lists/waives.txt
+++ b/tests/integration/test_lists/waives.txt
@@ -140,7 +140,6 @@ accuracy/test_llm_api_pytorch.py::TestStep3_7::test_fp8_block_scales[tp_size=4-e
 accuracy/test_llm_api_pytorch_multimodal.py::TestExaone4_5_33B::test_auto_dtype[forced_chunked_prefill] SKIP (https://nvbugs/6211189)
 accuracy/test_llm_api_pytorch_multimodal.py::TestExaone4_5_33B::test_auto_dtype[full_budget] SKIP (https://nvbugs/6211189)
 accuracy/test_llm_api_pytorch_multimodal.py::TestGemma3_27BInstruct::test_fp8_prequantized SKIP (https://nvbugs/6215689)
-accuracy/test_llm_api_pytorch_multimodal.py::TestMistralLarge3_675B::test_nvfp4_4gpus[latency_moe_trtllm] SKIP (https://nvbugs/6181383)
 accuracy/test_llm_api_pytorch_multimodal.py::TestStep3_7::test_fp8_block_scales SKIP (https://nvbugs/6274932)
 accuracy/test_llm_api_pytorch_ray.py::TestLlama3_1_8BInstruct::test_pp2_ray SKIP (https://nvbugs/6094070)
 cpp/test_e2e.py::test_benchmarks[bart-90] SKIP (https://nvbugs/5550689)