diff --git a/src/pycram/worlds/multiverse_communication/clients.py b/src/pycram/worlds/multiverse_communication/clients.py
index 7bca176f6..e02ee92aa 100644
--- a/src/pycram/worlds/multiverse_communication/clients.py
+++ b/src/pycram/worlds/multiverse_communication/clients.py
@@ -485,7 +485,6 @@ def send_data_to_server(self, data: List,
         if receive_meta_data:
             self.request_meta_data["receive"] = receive_meta_data
         self.send_and_receive_meta_data()
-        self.lock.release()
         self.send_data = data
         self.send_and_receive_data()
         response_meta_data = self.response_meta_data