I've had my toolchanger up and running for a few days, been dialing in my print settings on some CFPP material. Today when I started the machine through the DuetWifi browser control, I hit home all, and the Z Axis crashed into the XY Gantry, until I hit emergency stop. I have since checked all connections to the Z switch, config file etc, and now I cannot get a registered reading from the Z switch. Has anyone else had this component just up and fail on them? I'm going to pull the part and try to order a replacement, hopefully it is hardware failure and not the connection to the Duet.