There is a major bug in the colony world simulation when the voth appear, where you can't kill the final one and the simulation pauses, and thus are unable to progress any further. this has happened twice today at level 28 and 29 both both and in both cases the gens go to the state where they say all is dead and it just freezes. here a link to a video stream of a player in out match it happens at the very end of his stream which i was hosting
https://www.youtube.com/watch?v=GPIIS3gXJEk. and here a picture of another game i was in where it happened again.
https://drive.google.com/file/d/0BytQJJb0jxlgNUo5SlN0TTNuNGM/view