AHHHH thank you so much for playing, and I'm so sorry that you're running into these sorts of issues! Admittedly this is the first time that I've heard of this problem...
I wonder if the save file might have been corrupted? Could you try going to "C:// -> Users -> (whatever your username is) -> AppData -> Roaming -> Chattercap" and completely delete the "MINDMINDMIND" folder? After that I would try restarting the game. (You might need to enable hidden folders if they're not already visible on your PC.) If that works, in the settings, you can set "Skip all text" instead of skip unread text to quickly skip to the place where you left off.