does Extrude EdgesBy Edges work in SU 8 ???

yeah reinstall. i donwloaded it from sketchup.google.com to be sure

i have installed su, and now it works. Thanks to everyone for the support!

guys, i am undo-ing correctly , but it just doesn't work, more then one step it doesn't undo. I don't know what is wrong

i have just begin working with SU8 and i already found a bug, that the UNDO button only works one time. If i press again, it will not bring me my model one step back.
Do you have the same problem? what is wrong?