I see all of these videos where people build these massive structures and such... I started building a pit after I had a cave in... Just a simple square tower from bedrock to where the height of the ground would be... But after 15 blocks or so high, the blocks I place just break apart and fall... Seems weird since I am at bedrock and there shouldn't be an structural issue underneath... And it doesn't matter what kind of block, wood, cobblestone, rebar, concrete, metal frame... They all just fall apart... I would understand if it was on ground level and it was dug out underneath... And I'm not exceeding the limit of the block... I started with concrete blocks... The measurement is a 7x7x7x7 square... So the walls are 6 blocks, and the 4 posts are the 7th... And every 5th block high, there's a floor... But I've hit a spot where no matter what I place on the wall, the blocks just crumble away... It's a gigantic waste of time and materials, and I just don't understand what's going on here... Any ideas?