diff --git a/scripts/stac/imagery/create_stac.py b/scripts/stac/imagery/create_stac.py
index ae44152e..6ccb7806 100644
--- a/scripts/stac/imagery/create_stac.py
+++ b/scripts/stac/imagery/create_stac.py
@@ -96,6 +96,8 @@ def get_providers(licensors: list[str], producers: list[str]) -> list[Provider]:
     return providers
 
 
+#pylint: disable=too-many-locals
+#pylint: disable=too-many-nested-blocks
 def create_item(
     asset_path: str,
     start_datetime: str,
@@ -135,20 +137,27 @@ def create_item(
 
     if derived_from is not None:
         for derived in derived_from:
-            derived_item_content = read(derived)
-            derived_stac = json.loads(derived_item_content.decode("UTF-8"))
-            if not start_datetime or derived_stac["properties"]["start_datetime"] < start_datetime:
-                start_datetime = derived_stac["properties"]["start_datetime"]
-            if not end_datetime or derived_stac["properties"]["end_datetime"] > end_datetime:
-                end_datetime = derived_stac["properties"]["end_datetime"]
-            item.add_link(
-                Link(
-                    path=derived,
-                    rel=Relation.DERIVED_FROM,
-                    media_type=StacMediaType.GEOJSON,
-                    file_content=derived_item_content,
+            try:
+                derived_item_content = read(derived)
+                derived_stac = json.loads(derived_item_content.decode("UTF-8"))
+                if not start_datetime or derived_stac["properties"]["start_datetime"] < start_datetime:
+                    start_datetime = derived_stac["properties"]["start_datetime"]
+                if not end_datetime or derived_stac["properties"]["end_datetime"] > end_datetime:
+                    end_datetime = derived_stac["properties"]["end_datetime"]
+                if item.stac.get("links"):
+                    for link in item.stac["links"]:
+                        if link["rel"] == "derived_from":
+                            get_log().info(f"Existing derived_from {link['href']}", href=link["href"])
+                item.add_link(
+                    Link(
+                        path=derived,
+                        rel=Relation.DERIVED_FROM,
+                        media_type=StacMediaType.GEOJSON,
+                        file_content=derived_item_content,
+                    )
                 )
-            )
+            except NoSuchFileError as e:
+                get_log().error(f"Error loading derived item {derived}", json_file=derived, error=str(e))
 
     item.update_datetime(start_datetime, end_datetime)
     item.update_spatial(*get_extents(gdalinfo_result))