Hi, I've been testing on 3 different MQTT instances, i can publish from the UI FLOW on my Fire Core unit. As soon as i add the subscribe to a topic the units freeze and nothing happens. Ive tried on 4 different Fire Cores i have with me and on 2 different stick C models, add do the same, as soon as you add subscribe the units boot and seem like it tries to connect to MQTT then freezes
Using firmware 1.4.2
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