diff --git a/deepset_cloud_sdk/__about__.py b/deepset_cloud_sdk/__about__.py
index 0b48645b..7a8c3211 100644
--- a/deepset_cloud_sdk/__about__.py
+++ b/deepset_cloud_sdk/__about__.py
@@ -1,3 +1,3 @@
 """This file defines the package version."""
 
-__version__ = "0.0.28"
+__version__ = "0.0.29"
diff --git a/deepset_cloud_sdk/_s3/upload.py b/deepset_cloud_sdk/_s3/upload.py
index 9d1d8209..ef54e678 100644
--- a/deepset_cloud_sdk/_s3/upload.py
+++ b/deepset_cloud_sdk/_s3/upload.py
@@ -32,16 +32,6 @@ def __init__(self, error: aiohttp.ClientResponseError) -> None:
         self.error = error
 
 
-@dataclass
-class S3UploadSummary:
-    """A summary of the S3 upload results."""
-
-    total_files: int
-    successful_upload_count: int
-    failed_upload_count: int
-    failed: List[str]
-
-
 @dataclass
 class S3UploadResult:
     """Stores the result of an upload to S3."""
@@ -51,6 +41,16 @@ class S3UploadResult:
     exception: Optional[Exception] = None
 
 
+@dataclass
+class S3UploadSummary:
+    """A summary of the S3 upload results."""
+
+    total_files: int
+    successful_upload_count: int
+    failed_upload_count: int
+    failed: List[S3UploadResult]
+
+
 def make_safe_file_name(file_name: str) -> str:
     """
     Transform a given string to a representation that S3 accepts.
@@ -164,13 +164,14 @@ async def upload_from_file(
                 try:
                     await self._upload_file_with_retries(file_name, upload_session, content, client_session)
                     return S3UploadResult(file_name=file_name, success=True)
-                except:  # pylint: disable=bare-except
-                    logger.warn(
+                except Exception as exception:  # pylint: disable=broad-exception-caught
+                    logger.error(
                         "Could not upload a file to deepset Cloud",
                         file_name=file_name,
                         session_id=upload_session.session_id,
+                        exception=str(exception),
                     )
-                    return S3UploadResult(file_name=file_name, success=False)
+                    return S3UploadResult(file_name=file_name, success=False, exception=exception)
 
     async def upload_from_string(
         self,
@@ -220,13 +221,13 @@ async def _process_results(
             failed_files=[r for r in results if not r.success],
         )
 
-        failed: List[str] = []
+        failed: List[S3UploadResult] = []
         successfully_uploaded = 0
         for result in results:
             if result.success:
                 successfully_uploaded += 1
             else:
-                failed.append(result.file_name)
+                failed.append(result)
 
         result_summary = S3UploadSummary(
             successful_upload_count=successfully_uploaded,
diff --git a/tests/unit/s3/test_upload.py b/tests/unit/s3/test_upload.py
index 57d92004..94639088 100644
--- a/tests/unit/s3/test_upload.py
+++ b/tests/unit/s3/test_upload.py
@@ -113,7 +113,7 @@ async def test_upload_files_from_path_http_error(self, upload_session_response:
                 assert results.successful_upload_count == 0
                 assert results.failed_upload_count == 6
                 assert len(results.failed) == 6
-                assert results.failed == [
+                assert [f.file_name for f in results.failed] == [
                     "16675.txt",
                     "16675.txt.meta.json",
                     "22297.txt",
@@ -121,6 +121,7 @@ async def test_upload_files_from_path_http_error(self, upload_session_response:
                     "35887.txt",
                     "35887.txt.meta.json",
                 ]
+                assert all(isinstance(f.exception, RetryableHttpError) for f in results.failed)
 
         async def test_upload_texts_http_error(self, upload_session_response: UploadSession) -> None:
             exception = aiohttp.ClientResponseError(request_info=Mock(), history=Mock(), status=503)
@@ -138,11 +139,13 @@ async def test_upload_texts_http_error(self, upload_session_response: UploadSess
                 assert results.successful_upload_count == 0
                 assert results.failed_upload_count == 3
                 assert len(results.failed) == 3
-                assert results.failed == [
+
+                assert [f.file_name for f in results.failed] == [
                     "one.txt",
                     "two.txt",
                     "three.txt",
                 ]
+                assert all(isinstance(f.exception, RetryableHttpError) for f in results.failed)
 
         async def test_upload_texts_with_metadata_http_error(self, upload_session_response: UploadSession) -> None:
             exception = aiohttp.ClientResponseError(request_info=Mock(), history=Mock(), status=503)
@@ -160,7 +163,7 @@ async def test_upload_texts_with_metadata_http_error(self, upload_session_respon
                 assert results.successful_upload_count == 0
                 assert results.failed_upload_count == 6
                 assert len(results.failed) == 6
-                assert results.failed == [
+                assert [f.file_name for f in results.failed] == [
                     "one.txt",
                     "one.txt.meta.json",
                     "two.txt",
@@ -168,6 +171,7 @@ async def test_upload_texts_with_metadata_http_error(self, upload_session_respon
                     "three.txt",
                     "three.txt.meta.json",
                 ]
+                assert all(isinstance(f.exception, RetryableHttpError) for f in results.failed)
 
         @pytest.mark.parametrize("status", [503, 502, 500, 504, 408])
         @patch("aiohttp.ClientSession")