The part that I am really struggling with is the door frames. Previously the door frame around the lift doors would automatically create, but this is no longer happening. I have no idea why.
Is it a problem only with skyscrapersim or is it just buildings in general? If it’s just the building’s code then maybe someone can help with that. Alternatively, developers have found ways to add custom filler walls to lift doors, such as K.W. and some others and maybe you could their buildings as inspiration if they let you.