diff --git a/conda/environment.yml b/conda/environment.yml
index f458b2a8..10c590fd 100644
--- a/conda/environment.yml
+++ b/conda/environment.yml
@@ -21,7 +21,6 @@ dependencies:
   - polars
   - pyarrow
   - pyproj
-  - python
   - rich
   - scipy
   - pytorch
diff --git a/src/av2/utils/synchronization_database.py b/src/av2/utils/synchronization_database.py
index 433a34ef..72df0579 100644
--- a/src/av2/utils/synchronization_database.py
+++ b/src/av2/utils/synchronization_database.py
@@ -221,8 +221,8 @@ def get_closest_cam_channel_timestamp(
 
         cam_timestamps = self.per_log_cam_timestamps_index[log_id][cam_name]
         # catch case if no files were loaded for a particular sensor
-        # if not cam_timestamps.tolist():
-        #     return None
+        if not cam_timestamps.tolist():
+            return None
 
         closest_cam_ch_timestamp, timestamp_diff = find_closest_integer_in_ref_arr(
             lidar_timestamp, cam_timestamps