I am building the Proforge 2S with dual extruders and the heated bed upgrade and at stage 10, step 15 (https://makertech-3d.dozuki.com/Guide/Stage+10+-+Programming/15?lang=en) i see all 3 icons(heated bed, and both extruders) but only Extruder 2 shows the correct ambient temprature. Extruder 1 shows -15c and the heated bed show 166. To verify that the thermistors are working i tried to connect each and every one of them to the Extruder 2 pinout on the board and they all show their respective ambient tempratures, confirming that the thermistors work individually. However no matter what thermistor i connect to the other 2 connectors on the controller, i get no other reading. Do i have to enable something in the arduino code to enable the other ports on the controller? Someone suggested to swap the polarization of the sensors, but this left me with the same result. Additionally preheating the bed or any of the extruders does not change their temprature (using my fingers to feel if they get warm). I measured the powersupply and see good voltages. Has anyone else ran into this?