I have created some irregular surfaces which I am attempting to extrude to make into slabs. All goes to plan until I apply parts. When using a shaded or illustration display mode, some of the geometry jumps and displays incorrectly.
It appears to only be the case with Extruded solids. I have found that if I convert to a smart solid they will display correctly. Needs fixed anyway
ABD CE U2
wireframe
shaded
parts applied