Selecting an uninhabited planet then clicking the rush buy shortcut caused the UI to hang and then the game crashed to desktop. It seems to show the improvement progress and rush buy cost of the last colony that was selected. I was able to replicate the crash twice. After this, I updated my graphics driver as was suggested in the support faq even though not appearing to be graphics related. I haven't been able to replicate the crash after the driver update with 3 attempts.