diff --git a/source/RobotAPI/libraries/armem_objects/client/articulated_object/Writer.cpp b/source/RobotAPI/libraries/armem_objects/client/articulated_object/Writer.cpp
index 18d7aa50afd11ba59e9b5d3bb95ceda0a942fe58..20c3458aa7941cf7caa5a4a0dab9010f2267c035 100644
--- a/source/RobotAPI/libraries/armem_objects/client/articulated_object/Writer.cpp
+++ b/source/RobotAPI/libraries/armem_objects/client/articulated_object/Writer.cpp
@@ -232,6 +232,7 @@ namespace armarx::armem::articulated_object
 
         objectInstance.pose.objectID = cs;
         objectInstance.pose.providerName = properties.providerName;
+        objectInstance.pose.attachmentValid = false;
 
         update.instancesData = {objectInstance.toAron()};
         update.referencedTime   = timestamp;