diff --git a/libraries/object-persistor/src/PersistorHelper.js b/libraries/object-persistor/src/PersistorHelper.js
index 28b8c0c2aa..ad0a705d68 100644
--- a/libraries/object-persistor/src/PersistorHelper.js
+++ b/libraries/object-persistor/src/PersistorHelper.js
@@ -140,6 +140,10 @@ async function verifyMd5(persistor, bucket, key, sourceMd5, destMd5 = null) {
 }
 
 function wrapError(error, message, params, ErrorType) {
+  params = {
+    ...params,
+    cause: error,
+  }
   if (
     error instanceof NotFoundError ||
     ['NoSuchKey', 'NotFound', 404, 'AccessDenied', 'ENOENT'].includes(
diff --git a/services/history-v1/storage/scripts/back_fill_file_hash.mjs b/services/history-v1/storage/scripts/back_fill_file_hash.mjs
index 697690d646..d6f033109a 100644
--- a/services/history-v1/storage/scripts/back_fill_file_hash.mjs
+++ b/services/history-v1/storage/scripts/back_fill_file_hash.mjs
@@ -356,7 +356,8 @@ async function processFile(entry, filePath) {
         { err, projectId, fileId, hash, path, attempt },
         'failed to process file, trying again'
       )
-      await setTimeout(RETRY_DELAY_MS)
+      const jitter = Math.random() * RETRY_DELAY_MS
+      await setTimeout(RETRY_DELAY_MS + jitter)
     }
   }
   return await processFileOnce(entry, filePath)
@@ -1000,7 +1001,8 @@ class ProjectContext {
             { err, projectId: this.projectId, attempt },
             'failed to get DEK, trying again'
           )
-          await setTimeout(RETRY_DELAY_MS)
+          const jitter = Math.random() * RETRY_DELAY_MS
+          await setTimeout(RETRY_DELAY_MS + jitter)
         }
       }
     }