Welcome to Pro/E... 😕 Once in a while, Pro/E does this for no particular reason (not particularly with showing axes - it could be anything that causes the 'instant exit'). Things you can try: - Reboot your computer. It's an IT cliché, but it often works. - Try the same thing in a different drawing. - Try changing something else in your drawing first. - If it keeps doing it in the same drawing, get a colleague to open the drawing on their computer, change something and save it again. HTH.