If I click on the "preheat" buttons in Matter Control, for both the print head (215C) and the bed (90C) , the error also occurs. Same if I just preheat the print bed. The print head gets all the way to 215. The error seems to happen when the bed reaches around 80-85 degrees. I also tried preheating, clicking "off" then preheating again. That log is attached - I get an error at about 85 degrees that MAX TEMP has been reached (see attached max_temp_log).