Why is my Boolean not woking???????

@3dRaven I tried for few hours and I am still not able to figure this out which is why I decided to start building another tower and now I am able to create stairs. Luckily, I am still in phase 1 in this project which is why I decided to start a new one but what if I was halfway through in the project :grimacing: that would’ve been nightmare. If you got the time, could you make a video please for this one. I think I have to create my first game to pass and I’m halfway in this course. THANKS AGAIN FOR YOUR HELP!!