Extrude normals not working properly When I extrude these faces along normals with Alt+E and select Extrude along normals my faces get extruded wrong, even If I select Offset Even the thickness of the model is wrong.

I reset all my settings and reopened Blender before trying to replicate this behaviour. It still happened. 

So here's what I expect


Heres what I´m getting
You must have changed the scale of your object in Object mode, you need to apply the scale with ctrlA, otherwise you will have some stretch effects when beveling, shrink/fattening, etc.