Large office building in EnergyPlus defined as just 3 separate floors without any wall connecting them
I am currently running large office building simulation on EnergyPlus and I downloaded my files directly from energyplus website.
It is supposed to be 3 story building, but after running it in open studio it was just 3 separate floors without any wall connecting them together:
Can anyone tell me how I can fix this problem? Or is there any other source that I can download idf file for large office buildings that does not have this problem?