I dumped a level the other day from a server. Today, I went to load it and it's hanging quite a bit. I've let it load for the past 15 minutes and every 30 seconds or so I can move a tad bit. I've noticed an onslaught of water blocks filling every part of the map up to the sky that doesn't already have a block in it. I'm assuming it's hanging like this because of the water filling in. My question is, why is it doing this? There was water in the server map, but it wasn't over the whole thing.