Hello,
thanks for your feedback reguarding the performance. I'm glad to read that Archive performs well on your hardware. :)
I'm not a 100% sure, but "Go Ahead" must be the answer option when you return from an interrupted play session. Did you? Does she talks about that it was odd that something shut her down? If yes, then choose the "Please, let's restart." option. You then will enter from the beginning. Down worry, your progress isn't lost then.
Ahh.. and no.. you don't have to pick a chapter by yourself at any time.
Greets,
NH