--- a/NEWS	Mon Mar 30 11:36:16 2026 +0200
+++ b/NEWS	Mon Mar 30 12:47:58 2026 +0200
@@ -15,8 +15,6 @@
 * When performing a C-Store or a peer transfer, the instances are now 
   grouped per series and ordered by their InstanceNumber instead of using
   a random order in previous Orthanc versions.
-TODO before release: - reconfigure the instancesLoader when unserializing a C-Store or peer job
-                     - serialize the ParentResources in C-Store and peer job
 * New experimental configuration "PatientLevelEnabled".
 
 TODO before release: re-enable test_content_disposition

--- a/OrthancFramework/Sources/JobsEngine/SetOfInstancesJob.cpp	Mon Mar 30 11:36:16 2026 +0200
+++ b/OrthancFramework/Sources/JobsEngine/SetOfInstancesJob.cpp	Mon Mar 30 12:47:58 2026 +0200
@@ -274,4 +274,15 @@
       hasTrailingStep_ = false;
     }
   }
+
+  void SetOfInstancesJob::GetInstancesIds(std::vector<std::string>& target) const
+  {
+    target.clear();
+    target.reserve(GetCommandsCount());
+
+    for (size_t i = 0; i < GetCommandsCount(); ++i)
+    {
+      target.push_back(dynamic_cast<const InstanceCommand&>(GetCommand(i)).GetInstance());
+    }
+  }
 }

--- a/OrthancFramework/Sources/JobsEngine/SetOfInstancesJob.h	Mon Mar 30 11:36:16 2026 +0200
+++ b/OrthancFramework/Sources/JobsEngine/SetOfInstancesJob.h	Mon Mar 30 12:47:58 2026 +0200
@@ -51,6 +51,7 @@
     // Hiding this method, use AddInstance() instead
     using SetOfCommandsJob::AddCommand;
 
+    void GetInstancesIds(std::vector<std::string>& target) const;
   public:
     SetOfInstancesJob();
 

--- a/OrthancServer/Sources/ServerJobs/StoreJob.cpp	Mon Mar 30 11:36:16 2026 +0200
+++ b/OrthancServer/Sources/ServerJobs/StoreJob.cpp	Mon Mar 30 12:47:58 2026 +0200
@@ -45,6 +45,21 @@
     SetOfInstancesJob(serialized),
     context_(context)
   {
+    // we need to rebuild the instancesIds_ and filesInfo_ from the SetOfInstancesJob
+    GetInstancesIds(instancesIds_);
+
+    for (size_t i = 0; i < instancesIds_.size(); ++i)
+    {
+      FileInfo fileInfo;
+      int64_t revisionNotUsed;
+      if (!context.GetIndex().LookupAttachment(fileInfo, revisionNotUsed, ResourceType_Instance, instancesIds_[i], FileContentType_Dicom))
+      {
+        throw OrthancException(ErrorCode_UnknownResource, std::string("Error while unserializing a job, unable to find DICOM attachment for instance ") + instancesIds_[i]);
+      }
+
+      filesInfo_.push_back(fileInfo);
+    }
+
   }
 
   void StoreJob::AddInstances(const std::vector<std::string>& instancesIds,
@@ -87,7 +102,8 @@
   {
     if (reason == JobStopReason_Canceled ||
         reason == JobStopReason_Failure ||
-        reason == JobStopReason_Retry)
+        reason == JobStopReason_Retry ||
+        reason == JobStopReason_Success)
     {
       // clear the loader threads
       if (instancesLoader_.get() != NULL)

--- a/OrthancServer/Sources/ServerJobs/StoreJob.h	Mon Mar 30 11:36:16 2026 +0200
+++ b/OrthancServer/Sources/ServerJobs/StoreJob.h	Mon Mar 30 12:47:58 2026 +0200
@@ -39,7 +39,6 @@
   protected:
     ServerContext&                             context_;
     std::unique_ptr<ThreadedInstancesLoader>   instancesLoader_;
-    // TODO: re-create when unserializing (in AddParentResources ?)
     std::vector<std::string>                   instancesIds_;
     std::vector<FileInfo>                      filesInfo_;
 

--- a/TODO	Mon Mar 30 11:36:16 2026 +0200
+++ b/TODO	Mon Mar 30 12:47:58 2026 +0200
@@ -71,8 +71,6 @@
     "admin": {
       "Password": "5baa61e4c9b93f3f0682250b6cf8331b7ee68fd8", 
       "Hashing": "sha1"} }
-* Reuse the ThreadedInstanceLoader from the ArchiveJob in C-Store, peer/store ... to optimize loading
-  time when working with an object storage.
   
 
 ============================