diff --git a/extra-addons/open_workshop/open_workshop_mqtt/models/mqtt_device.py b/extra-addons/open_workshop/open_workshop_mqtt/models/mqtt_device.py
index e4c2f66..39dbbcc 100644
--- a/extra-addons/open_workshop/open_workshop_mqtt/models/mqtt_device.py
+++ b/extra-addons/open_workshop/open_workshop_mqtt/models/mqtt_device.py
@@ -532,6 +532,10 @@ class MqttDevice(models.Model):
         }
         
         if any(field in vals for field in relevant_fields):
+            # ORM-Cache leeren damit _build_bridge_config die soeben geschriebenen
+            # Werte liest und nicht die gecachten Vor-Write-Werte.
+            self.env.flush_all()
+            self.env.invalidate_all()
             try:
                 self._push_bridge_config()
             except Exception as e: