I'm using the Duet 2 with firmware 3.4.1 downloaded for my occupation. It is being used for a Modix Big 120X. We've replaced the nozel and probe to a custom brand because it works much better. Everything is working fine except. We are having issues with the height mapping. We can't seem to get the G29 command to work properly. Every time we run it, it jams the extruder nozzle way too far into the bed. We are extremely lucky that it hasn't damaged our nozzle and/or extruder. Each time this happens we get an error saying that the probe didn't probe the bed at all. We need support and help to figure out how to get the height mapping and mesh bed probe working. Any suggestions, please help.