Maybe this has been fixed in 0.15.3, but I ran into something bad earlier in 0.15.2. Just a PSA to be careful in saving over your slots when you're doing a scripted event. Twice it happened to me in doing Mom's route where an event didn't trigger properly.
First time was with the first movie watching; it said I heard something downstairs but nothing was down there, and I couldn't go to sleep. Reloading my save from earlier that in-game day caused it to trigger properly. Later on, the dinner with Mom and Aunt didn't trigger properly - Aunt came, the dialogue played, and it told me to go to the dining room. But then it was nighttime and nothing was going on in the house; interacting with the dining table just told me it wasn't set, and I couldn't go to sleep. I had unfortunately saved over my only save right after the dialogue without thinking, so I had no choice but to restart completely.
It's possible this is due to using the incest patch that wasn't ready for .2, I don't know. But yeah. Be careful. Hopefully it's fixed and this is a pointless post.