Sunbeam v1.59 randomly lost it's config.
More of an FYI, woke up today to find my sunbeam had basically reset itself at midnight 9/1/2026 (stopped sending mqtt data at 1 second resolution 00:00:42). I haven't touched it via web for several months. But various automation scripts will adjust the power limit a few times a day via mqtt. It appears only WiFi info was kept, everything else was reset to default (timezone, mqtt, back to display control, etc).



Hi Lael, Thanks for the information. I will need to continue to monitor this as this happens very rarely. I have it happened with other devices that share the same hardware and codebase and what you describe is exactly what happens. It's similiar symptom when you press the "erase settings" button under the Network Configuration. This is where the user flash gets erased as opposed to the system flash where the wifi info is kept. The erasing part when it is not on purpose but rather automatic is a designed feature by us where at boot up, if the firmware checks a certain part of the flash to see if it is as expected. If it finds something unexpected, it will erase (reset) the entire user flash. just in case. For some reason, the firmware must have corrupted this portion and caused a reboot. I'm thinking there is a bug somewhere that crashed the firmware, but I haven't found it yet. I'm pretty sure it's not in the code that I wrote because I've checked many times. I think it's in one of the many libraries that I've used so that is why finding it is so difficult.