I recently got my hands on my new Hemera Extruder kit. I've installed it to my Ender 3 Pro, which was running an SKR Mini E3 v1.2 board. Wired it up as per Teaching Tech's video, made firmware changes for the maxtemp, temp sensor, steps. When I boot the machine up, I can see on the screen that bed temperature is bouncing around between 94 and 122 Celsius. (See Screenshot) Any attempt to initiate PID tuning or to warm up the nozzle result in a series of quick chirps from the motherboard followed by a long high pitch squeal alarm. Octopi reports the error: "(Error: Heating failed, system stopped! Heater_ID: 0 -)" I've tried disconnecting the Pi and running purely off of the manual screen controls, but no change. I've also removed the solid tips from the heater block wiring to make it go into the screw lock more neatly, also no change. What am I doing wrong?