It all started with this one day:
It just appeared and wouldn't go away. I couldn't add blocks, and when I went into it I would just fall down really slowly, and no light would shine into it either. It was totally dark inside. Every time I would load the map it would take a little longer each time and now I'm lucky if 1 chunk of the map loads. It says building terrain for what seems to be forever and eventually opens to nothing and stays at nothing for a few minutes, then 1 chunk MAYBE loads later and maybe a 2nd or 3rd chunk attached but that's as far as it gets. Nothing will load anymore and I don't know why.
Added (1). ok so more than 3 chunks loaded but it's still pretty bad
