Hi! When I switched on my Ultimaker 2+ ext. I noticed that the nozzle cooling fan started spinning. Via the Ultimaker menu I figured out that the nozzle temperature was about 20 °C too high (room temperature an bed temperature about 20°C) and showed over 40 °C. Turning off and on again didn't solve the problem, a factory reset did. Has anyone an idea what could have caused the problem? Thanks!