Non existing MQTT devices keep coming back

I was using zigbee2mqtt which added all some 20 devices. When I switched to deconz conbee2 stick, I removed the zigbee2mqtt plugin.
Then I opened configuration -> mqtt -> devices and removed each of the obsolete devices. But after a HA reboot they all come back.
What can I do to have them removed for all?

Take a tool like MQTT Explorer and delete the retained topics on your broker.

Ok, so I started MQTT Explorer, and found a lot of old zigbee2mqtt topics.

image

How do I delete them? Sorry, i have no clue :slight_smile:

EDIT: Sorry. A bit more tinkering, and I guess i solved it.

Auswahl_358

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You need to delete the homeassistant topics created from zigbee2mqtt. Just click the bin.

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Thanks guys :slight_smile: