Oh I see, that makes sense about the triggers. It worked for me today, so no hamsters were accidentally depressurized! I made it all the way to Day 6, but as I'm walking to turn on the radio beacon and leave the hub to enter Mazovia or Panonia (I tried both) it changes from your white clothes back to the EVA suit. I get the feeling it has taken me to Day 5 again because I can go outside and check on the antenna, but I'm not sure because when I come back in afterward I can't activate the radio panel like I did at the end of the real Day 5.
I'm just having fun playing! It's fun to see where the story goes, and if I do get stuck, it's not bad starting from a save point or even the beginning since catching up doesn't take that long.