Hi Mike - thanks, that's probably the same bug - it seems to be generating some massively mangled object that is astronomically large - if you push "Done" and then look at the properties panel you'll see it has a size of 54x54x66390776 units, that huge object size is what messes up the display.

I'll take a look at this one too. Maybe if I can figure it out today I'll put up a new beta.

- Michael