The latest build extrudes art as flatten, both with the tool (while drawing edges just fine) and the panel: https://dl.dropboxusercontent.com/s/ceabf6bk9upvi98/axo_extrude_flat.gif
The structure is there, but all is collapsed to a null width.
Does not help if I choose Wireframe or change projection preset 🙁
The document has all units set to millimeters, customized Print profile on creation. Same happens for Web also.
Have no idea how to fix that.