I have a PCB design I am trying to copper pour. If my pour area is the same as the board then the pour fails in that it fills in a few islands between tracks and components but misses all the large areas around the edges of the board.
If I make the pour area smaller so it covers about 80% of the board then the coppper pour works as you would expect, appart from not doing all the board.
It's most likely due to something very specific with some of the tracks or other items in your design. I suggest you mail the design file to our support team (support at numberone.com) and we'll take a closer look.