so1-tsuda

Hi, I just wonder if anybody had similar problem with UM2: Basically, the front push button on my Ultimaker2 suddenly became unresponsive (no beep sound either). Rotate button seems to work fine --- I can toggle "Print", "Material", "Maintenance", but can't proceed because of push button.... I have turned on and off UM2, but doesn't make any difference. Anybody knows how to fix by any chance? Cheers, So