Can you start a new fresh container, then add a Grid block. Then in that grid block, make sure you don’t add another grid block. Things will get messy if you add grids within grids, which you’ve done here: https://www.screencast.com/t/avZYqXrJAcWO
The green arrows are also showing a grid item outside of the wrapper, which tells me there might be some broken HTML inside one of the grids. Have you added any HTML in there?