Wait 30 seconds before publishing device states. https://github.com/Koenkk/zigbee2mqtt/issues/105

lib/extension/homeassistant.js

@@ -1581,7 +1581,7 @@ class HomeAssistant extends BaseExtension {
                 }
 
                 clearTimeout(timer);
-            }, 20000);
+            }, 30000);
         }
     }