Thanks. There’s no explanation about that setting, but I switched it on for a few devices and will see how it behaves in the future.
I thought of adding a feature request, bus as it seems there’s something buggy going on
@elstupid the retain setting is an MQTT feature. It has to do with ensuring that the last MQTT message is retained so that a read of the queue can always get the last message. You can read more about the retain feature here:
https://www.hivemq.com/blog/mqtt-essentials-part-8-retained-messages/
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