On Wednesday, some Bambu users woke to find that their 3D printers had created new unwanted prints overnight — without any prompts or supervision by users. Not only did those prints damage some devices when they attempted to print a second design atop ones they already printed out but it also raised concerns about potential fire risks. Bambu traced the issue back to a cloud server outage — specifically, they sent extra MQTT commands when they shouldn’t have and without checking there…