New chunk generation bugs out and game doesn’t load

Sometimes in the world, most often when I travel long distances and load in new chunks, the side of blocks become see through and world stops generating correctly up until I try opening the menu or my inventory and then a never ending loading bar appears until I’m forced to close the app. My world exceeded 100 mb and is a copy of a copy and so on of a world made a while ago, which might be the problem but I’m not sure