I may be wrong in this but from reading the forums I got the impression the game always crashes whenever the AI invades a players planet due to a bug with the new invasion screen. This basically means it would be almost impossible for the AI to win because it can't take the players planets except culturally.
For the people who are playing the beta just to find bugs this shouldn't make a difference, but for others who are playing the betas for fun or other similar reasons it has a serious impact.
As I understand it the cause of the bug has been found. Will there be a small mini update released once it's fixed instead of us waiting until 17th Jan which I think the next beta update is planned to be released.
A small mini update to fix this bug would be great.