I have a Creality CR-10S and I have installed the EZABL system on it. I have been trying to implement Unified Bed Levelling using Marlin 1.1.8 on it but I am having a problem. The filament sensor is ALWAYS triggered, so the printer is useless. I have been going over and over the configuration files trying to find out what is going on, but no joy. If I rework the config files for BiLinear levelling it works just fine. BiLinear also works with Marlin 1.1.6 and 1.1.7, so there isn't a problem with the sensor. Any ideas what I should be looking for to fix this?