Trial chamber spawned in as single tuff brick wall and nothing else

I got a Trial chamber map from my local cleric and when i went to go to the chamber i digged down but i could only find a single wall of tuff bricks. A video is linked but i had to cut off half of it due to the playstation limitations with downloading videos. After the clip i digged all around the bricks yet i could not find anything. Also sorry for the quality, i had to compress it due to the size of the file.