Can you try the following.
Start a new game and click the Cheats menu at the bottom of the screen
Enable the Walthrough and then continue the game
Get to the first choice and confirm if you see the words Introvert and Extrovert underneach each in orange.
If not, then assuming you are running this on Windows,
Navigate to your Campus Bonds Install folder and then go to:
"game\season1\episode1\scripts" and look for the file "script1.rpy"
Confirm it has a last modified date of October 5th 2025 at 18:46
If not, then you have the wrong script files and something has gone wrong.