Lately, my map has been loading kinda funky. I'll walk straight off the map and seemingly plumit to my doom, only to pop back up with the next part of the map loaded now. This isn't odd for older computers, or at least not mine. Lately though I've mining ore such as coal, and when I remove 1 block of it, 2 more regular stone blocks suddenly transform into coal. It's not to much trouble, but this pic above is the latest problem. And the best example pic I could have taken. Ore pops in multitude, amazing amounts, only for me to find out that it's just cobble... Can anyone tell me why this is happening? or why my map just doesn't render everything at once?
Thank you for your help.
Xbot668