Hey,
1.It is done up to part where Masuo offers to become her mentor. I don't think overlapping should happen but will keep this in mind.
As for Ran and Masuo, I think it's because a line I added to prevent the animation from showing up. Didn't do it well as you can see. I don't wanna tell you how that one appears just know you don't have to do anything special.
2.I thought I removed her lines so the game wouldn't freeze. I guess I will have to see if the code is still running from other scripts.
3.In apartments? I wonder if it because of pathfinding like in college level.
4.You need to talk to Momoko and get the dinner dialogue for Len's apartment to unlock. That purple box is just doortouch interaction sprite. It will not affect the gameplay.
5.It tries to load all 16 animation at that frame. Once it's done the game works as usual. I could do that at the start so level so that time is counted in the loading time or load animations with 1/60 second time interval between them.
6.SCM-555 is related to longer version of Atsumu and Youhei's quest. And three sprites? Can you post them up because I remember drawing a few sprites before this long break but now I'm looking for them, they are nowhere as if they never existed.