log keep showing "dict object" has no attribute

[flint edge]

Tried searching the /config folder with grep after "value_json" or one of the terms (alarm, max_duration, reliability,... but couldn't find anything. This keeps flooding my logfile

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It's almost always an MQTT device

Assuming you have some of those, you can connect to the MQTT broker with MQTT Explorer and search for those template strings to try to figure out what's causing it