this is something new since the update and doesnt happen every time but occasionally. im on osx version. when clicking an up or down arrow to adjust any of the values in the process settings it will stick once in awhile making the value run away either up or down respectively. not a super huge deal but you had better pay attention because if you move on and dont notice you can end up slicing and getting crazy results. on one i can remember i was turning perimeter was down from 4 to 3, i sliced and had barely no model in the preview. went back and the walls was set to 0. this has probably happened 1/2 dozen times now since the update and has never happened previously.