This main menu glitch will happen when you try to load old patch while still having a savefile from current patch. Because current patch savefiles contain more data the game doesn't really know what to do and you get this effect. So be sure to remove the WTTG2.gd file before you load old patch. You can find it here: C:\Users{username}\AppData\LocalLow\Reflect Studios\Welcome to the Game II\WTTG2.gd