If you unlocked and played a later step of her events, than it means the game considers the previous events done and has advanced you to those events. Can you post your save file?
I have that on my mind for a while its so awesome seeing devs care that much to respond across multiple platforms to basicly all issues. even seen you copy pasting parts of the walkthrough to someone stuck.
Just wanted to say... Thank you for all the work i wish you all the best and much love.
You could upload it to an upload page like mega and post the link here, or send me the file via email at Naughty-Netherpunch@web.de (I only need one .rpgsave file from the www/save folder with the save slot number in which you have the issue)