diff --git a/.buildkite/test-nightly.yml b/.buildkite/test-nightly.yml
index 6e7ce6a10..cef70ba84 100644
--- a/.buildkite/test-nightly.yml
+++ b/.buildkite/test-nightly.yml
@@ -77,7 +77,7 @@ steps:
     if: build.env("NIGHTLY") == "1" || build.pull_request.labels includes "nightly-test"
     commands:
       - export VLLM_WORKER_MULTIPROC_METHOD=spawn
-      - pytest -s -v tests/e2e/online_serving/test_*_expansion.py -m "advanced_model and diffusion and H100" --run-level "advanced_model"
+      - pytest -s -v tests/e2e/online_serving/test_*_expansion.py --ignore tests/e2e/online_serving/test_wan22_expansion.py -m "advanced_model and diffusion and H100" --run-level "advanced_model"
     agents:
       queue: "mithril-h100-pool"
     plugins:
diff --git a/tests/e2e/online_serving/test_bagel_online.py b/tests/e2e/online_serving/test_bagel_online.py
index 84813ceac..ca24f5f81 100644
--- a/tests/e2e/online_serving/test_bagel_online.py
+++ b/tests/e2e/online_serving/test_bagel_online.py
@@ -78,7 +78,6 @@ def _build_img2img_messages(prompt: str, image_b64: str) -> list[dict]:
     ]
 
 
-@pytest.mark.skip(reason="L3 CI failed")
 @pytest.mark.core_model
 @pytest.mark.advanced_model
 @pytest.mark.diffusion
@@ -90,12 +89,18 @@ def test_bagel_text2img_online(omni_server, openai_client) -> None:
         "model": omni_server.model,
         "messages": _build_text2img_messages(TEXT2IMG_PROMPT),
         "modalities": ["image"],
+        "extra_body": {
+            "height": 512,
+            "width": 512,
+            "num_inference_steps": 2,
+            "guidance_scale": 0.0,
+            "seed": 42,
+        },
     }
 
     openai_client.send_diffusion_request(request_config)
 
 
-@pytest.mark.skip(reason="L3 CI failed")
 @pytest.mark.core_model
 @pytest.mark.advanced_model
 @pytest.mark.diffusion
@@ -112,6 +117,11 @@ def test_bagel_img2img_online(omni_server, openai_client) -> None:
         "model": omni_server.model,
         "messages": _build_img2img_messages(IMG2IMG_PROMPT, image_b64),
         "modalities": ["image"],
+        "extra_body": {
+            "num_inference_steps": 2,
+            "guidance_scale": 0.0,
+            "seed": 42,
+        },
     }
 
     openai_client.send_diffusion_request(request_config)
diff --git a/tests/e2e/online_serving/test_wan22_expansion.py b/tests/e2e/online_serving/test_wan22_expansion.py
index f7c01c748..e5e2d748d 100644
--- a/tests/e2e/online_serving/test_wan22_expansion.py
+++ b/tests/e2e/online_serving/test_wan22_expansion.py
@@ -84,6 +84,7 @@ def _get_wan22_feature_cases():
 
 
 @pytest.mark.advanced_model
+@pytest.mark.diffusion
 @pytest.mark.parametrize(
     "omni_server",
     _get_wan22_feature_cases(),