I tried downloading the Windows build and I was able to reproduce the bug with the two new maps not showing! This only happened on our Windows version when built from an automated script. I have updated the build with this fix.
Thanks man, you were the only one to report this!
However, I thought about how some people might actually never see the two maps with this kind of random approach to select scenes. I will tweak this "randomness" so all maps are played consistently! This was not an issue before because for the most part we've only had 3 maps to playtest everything, but now that we are focusing more on producing more content, it's a good time to implement this!