I have a bug. If continue game from mission #4, then after first start mission on top part of screen appears 3 overlapped messages from someone people. I think is messages from that scientists, what we need rescue, but me not rescued anyone yet.
Thanks so much for posting, it helped me find a potentially game-breaking bug! Seems that continuing the campaign after restarting the game causes conversations and some messages to glitch out. It will make getting the best ending impossible. Will have a fix shortly.
Until then, you can edit Player.xml file in Resources/Save folder and change the "currentMission" number at the end of that file to skip ahead to other missions if you get stuck.