extrude and bevel broken in latest version (shots and steps to recreate)
for some reason, it doesn't draw the side walls. You can reproduce this by selecting an object, go to 3D > extrude & bevel and set the vertical axis rotation to 0.
Screen shots with a simple rectangle and boolean box. You can see the sides are not being drawn. Once the effect is completed, and appearance is expanded, the sides do not exist.

Also it sometimes shows wireframes even though not in wireframe mode.
