Major Hole Glitch

-makes deep, large holes in the ground with my creations at the bottom
-occassionally lava and water run from the sides
-turns my superflat world into a regular world w/ landforms, etc.
-puts my world at the bottom of my list of worlds with no name and states "long ago" (even though I access the world several times a day)
-A MAJOR GLITCH THAT RUINS MY LARGEST CREATIONS