diff --git a/python/lib/sift_client/_tests/util/test_test_results_utils.py b/python/lib/sift_client/_tests/util/test_test_results_utils.py
index e23003d2f..fb4f70a9c 100644
--- a/python/lib/sift_client/_tests/util/test_test_results_utils.py
+++ b/python/lib/sift_client/_tests/util/test_test_results_utils.py
@@ -1,3 +1,4 @@
+import time
 from datetime import datetime, timezone
 
 import numpy as np
@@ -16,11 +17,46 @@
     assign_value_to_measurement,
     evaluate_measurement_bounds,
 )
-from sift_client.util.test_results.context_manager import NewStep
+from sift_client.util.test_results.context_manager import NewStep, ReportContext
 
 pytestmark = pytest.mark.integration
 
 
+class TestLogReplay:
+    """Test that the incremental replay subprocess creates real API objects."""
+
+    def test_replay_creates_report(self, sift_client):
+        unique_name = f"replay-test-{datetime.now(timezone.utc).isoformat()}"
+
+        with ReportContext(
+            sift_client,
+            name=unique_name,
+            test_case="test_replay_creates_report",
+            log_file=True,
+        ) as rc:
+            with rc.new_step(name="Step A") as step_a:
+                with step_a.substep(name="Step A.1"):
+                    pass
+            with rc.new_step(name="Step B"):
+                pass
+
+        # Wait to ensure the report creation has completed.
+        time.sleep(2)
+
+        reports = sift_client.test_results.list_(name=unique_name)
+        assert len(reports) >= 1, f"Expected report '{unique_name}' to be created by replay"
+        replay_report = reports[0]
+        assert replay_report.name == unique_name
+
+        steps = sift_client.test_results.list_steps(test_reports=[replay_report])
+        step_names = {s.name for s in steps}
+        assert "Step A" in step_names
+        assert "Step A.1" in step_names
+        assert "Step B" in step_names
+
+        sift_client.test_results.delete(test_report=replay_report)
+
+
 class TestContextManager:
     def test_link_run_to_report(self, report_context, nostromo_run):
         report_context.report.update({"run_id": nostromo_run.id_})
diff --git a/python/lib/sift_client/transport/grpc_transport.py b/python/lib/sift_client/transport/grpc_transport.py
index 07cda9855..232751485 100644
--- a/python/lib/sift_client/transport/grpc_transport.py
+++ b/python/lib/sift_client/transport/grpc_transport.py
@@ -9,6 +9,7 @@
 import asyncio
 import atexit
 import logging
+import os
 import threading
 from typing import Any
 from urllib.parse import urlparse
@@ -98,6 +99,8 @@ def __init__(self, config: GrpcConfig):
         Args:
             config: The gRPC client configuration.
         """
+        os.environ.setdefault("GRPC_ENABLE_FORK_SUPPORT", "0")
+
         self._config = config
         # map each asyncio loop to its async channel and stub dict
         self._channels_async: dict[asyncio.AbstractEventLoop, Any] = {}