The size field in the Generate dialogue doesn't seem to do anything. Whatever I enter (if I enter anything) seems to have no effect on the result.
I seem to be having issues as well and I am hitting enter. sometimes it works, sometimes not. It seems to depend on the number. Most 3 digit numbers (or less) seem to work but yet some do not. Then I thought maybe it was a percentage but I'm able to go above 100 and get a result. But to try to get a town of, say, 3,000 just doesn't seem to work.