Hi! Sorry I haven't gotten back to you.
This is a very strange bug that no one else has reported. Also, judging by the fact you're saying this is happening with other VN's leads me to believe the issue is with your device.
What kind of device are you playing the game on?
Viewing post in Bug Report and Generic Feedback comments
Hi again. I've reached out to other developers to see if they also have seen this problem and no one really has. My only recommendation is to uninstall and reinstall and hope that works.
You may need to play on another device. After doing a quick google search of your PC, it seems rather old. I believe this is an issue with your device and not an issue with the game. Wish I could be more helpful. Hope you're able to solve this issue 🙏