I have a problem with my extruder and don't know where to turn. It has been sporadically stopping extruding partway through a print for a couple weeks. If I restarted the printer it would behave fine for a print or two and then do it again. Now it won't extrude at all. It's not a plugged nozzle, I can push filament through it fine. The printer has been upgraded with a SKR 1.3 board with TMC2208 stepper drivers. It has Marlin firmware. I have swapped the stepper driver and the motor still won't turn. I then plugged the motor into the X axis connector and it turns fine. The firmware hasn't changed for a few months. I don't know what to do next short of putting the original board back in it. I changed it in the first place so I could print with PETG so I really don't want to do that.