I keep coming across this issue where I try to proceed to the next chapter and the pink curtains stay close. It seems to be random, and I've had it with both Neil and Dimitri.
For Neil, it has happened with chapter 17 and chapter 27 (passionate). As for Dimitri, I do not remember which route it happened on, but so far it has only happened once. Sometimes it just takes some fiddling around, or redoing the last chapter, but for my second read through with Neil, I just skipped route 17, since I'd already read it (worked fine the first time).
Hi there! Thank you for reporting it. I did check Neil's chapter 27 and it didn't open for me either, so I managed to fix that. However, Neil's chapter 17 worked fine for me. Are you positive it is chapter 17 that is giving you issues? I cannot seem to replicate it.
If you know at which point it happened for Dimitri's route, that will help narrow it down too! Was it near the beginning or near the end?
Edit: turns out it was Neil's chapter 19 that the curtains never opened :)