Tevo Little Monster Delta. I used the T3P3 Kossel as a starting point. Using a borrowed config from Facebook it worked fine. Generating a new config in the Configurator I get a Json error as soon as I home all. I'll try a catch the particular error but it was something along the lines of invalid parameter in json response.
Oh I set the Configurator to firmware 1.17+ and I'm running 1.18.2 with all the recommended components for that version.