I noticed when I upgraded Cura today that anytime I tried to any the monoprice mini select, it would crash immediately. After digging around it looks like the problem is in the malyan_m200.def.json file. It is used for providing definiations for the MP mini select. To fix the problem edit \Ultimaker Cura 3.2\resources\definitions\malyan_m200.def.json   About 2/3rds of the way down there is a line   "material_diameter": { "value": 1.75 }, Change it to   "materia