I'm a new player and after the tutorial, I started a new Ambient Mode save on normal. I just recently got to day 6 and tried sleeping for the night to encounter a dream. I closed the game to avoid the event and when I reopened it, the game fired off a new event. I was in the bunk room, so I just heard a boom of lightning and rain. I didn't move, going afk to wonder if I should close it again. I noticed saving was disabled. I want to avoid the scary stuff. After suddenly hearing the drone at the base, I tabbed back in and was able to save quickly.
Are post day 7 features locked behind a required event the night of day 6? Is it just Ambient Mode or all modes? I've never played before, so I don't know if this is a part of the new feature-locked addition to the 0.9 update or if night 6 always has an event.