Spaceship victory disabled?

[peso79]

So I'm about to win my first spaceship victory and completed all the parts, but once the last piece has been completed, I'm unable to access the spaceship screen to launch! F10 or "View Spaceship Progress" works just fine until the last piece is completed, preventing me from ending the game.

Is there something elementary that I'm missing here? All victory conditions were enabled when I started the game, so that is not a factor.

This will be the first game that I have won on Regent level, so this is kind of important to me. Please help!