test.moquitto.org topic tree not showing

[ghost]

The topic tree from test.mosquitto.org is not showing in MQTT Explorer and as far as i can see there is no way in MQTT Explorer to manually subscribe to a topic.

[PenguinPaws]

On the screen to add connnections, click the Advanced button. There you will be able to subscribe to topics.

[ghost]

Understood. But in the past, i don't know if it's previous versions of MQTT Explorer or previous versions of the test.mosquitto.org configuration, we could see the topic tree in MQTT Explorer. Also, other brokers do show the topic tree. So maybe it's a mosquitto.org configuration or an MQTT Explorer / mosquitto.org broker incompatibility.
I think it would be interesting to see which of the two it is.

[ralight]

MQTT Explorer is working fine.

The broker is configured to deny access to subscribing to the # topic to clients that look like they are MQTT Explorer, because it's a popular client and it subscribes to # by default so there would otherwise be a lot of wasted bandwidth.