Carpets no longer pass through

Carpets are no longer pass through so please make it pass through so that I can make a secret basement in my Minecraft house with the help of it. If you didn't understand what I said I can't get inside the carpets or put a carpet above a scaffolding to make a secret entrance. And I'm sorry if the description is too short. I copied someone else's report it wasn't someone else it was my old account.