Alpha 0.5.1 is now live.
Game becomes unresponsive after returning to the Main Menu and trying to start a second game. Reproduction steps are as follows:
1) Load web page.
2) Click "Run Game".
3) Click "New Game".
4) "Terran Remnants" is already selected by default. Click "Play".
5) Click "Menu".
6) Click "Return to Menu".
7) Click "New Game".
This brings the player to the Faction Select screen, which then fails to respond to any mouse clicks. The only solution is to reload the web page.