diff --git a/script/helpers.py b/script/helpers.py
index c75bee35b23..d06a2a327c0 100644
--- a/script/helpers.py
+++ b/script/helpers.py
@@ -162,8 +162,8 @@ def parse_component_metadata(name: str) -> ComponentMetadata:
     if not init_file.exists():
         return ComponentMetadata()
     try:
-        tree = ast.parse(init_file.read_text())
-    except (OSError, SyntaxError):
+        tree = ast.parse(init_file.read_text(encoding="utf-8"))
+    except (OSError, SyntaxError, UnicodeError):
         return ComponentMetadata()
     fields: dict[str, frozenset[str]] = {
         "AUTO_LOAD": frozenset(),
diff --git a/tests/integration/test_uart_mock_ld2412.py b/tests/integration/test_uart_mock_ld2412.py
index 12aa3f8397c..ea2ec38b2a3 100644
--- a/tests/integration/test_uart_mock_ld2412.py
+++ b/tests/integration/test_uart_mock_ld2412.py
@@ -325,9 +325,13 @@ async def test_uart_mock_ld2412_engineering_truncated(
         ],
     )
 
-    # Signal when we see Phase 3 recovery values (gate_0_move=50)
+    # Signal when we see ALL Phase 3 recovery values to avoid race where some
+    # arrive after the waiter fires but before we index into the lists
     recovery_received = collector.add_waiter(
-        lambda: pytest.approx(50.0) in collector.sensor_states["gate_0_move_energy"]
+        lambda: (
+            pytest.approx(50.0) in collector.sensor_states["gate_0_move_energy"]
+            and pytest.approx(42.0) in collector.sensor_states["light"]
+        )
     )
 
     async with (