First off, the map for every bb 1 1/2 game very slightly alters depending on what game you have downloaded. Moreover, every map has a different set of mechanics, features, and characters, and those preferences are set when the map loads. If you are saying that you downloaded a game that is NOT The Spectral School, and that the school scene is the EXACT same as The Spectral School, with the exact HUDs, characters, and assets, I have no idea how to help you on that; it may be a "your computer" problem.
Also, I have a series of questions for you to answer. I'll go one at a time.
1. Which BB 1 1/2 game have you been attempting to download and play?