This one really spooked me with how imposing the pineforest appears in the desert biome. I turned the corner of my new structure to find that the desert now has pineforest, something that caught me offguard. It spooked me that I'm now seeing what may be an old world generation meshing with the new one that only the new-old chunks that you interacted with have stayed. The bit around my spawn (Mountain Bowl) is normal, yet when you get further out to the 0.8.2 chunks with pyramids and such (the bit where biomes were modified) everything just flipped out.
I'm thankful the surface dungeons are back, yet the older world generation seems to be over-riding any untouched landmass by converting it back into the old world generation. I'm at a loss as to what happened, or if any conversion failed. It's now preventing me, and others, from playing on the main server that I'm now cursing I didn't back up the world.
Image 1: The view outside my new workshop & storage tower
Image 2: the pyramid that was overwritten by another, now found in what may be the original lake of the first world generation of the ocean & lakes. My desert was originally a hybrid of a lake and a pine forest.
Image 3: Alternate view of #1 where the pyramid was threatened to be wiped out by pine trees. Even the empty part above the farm has a single tree where I was to place a farm house to store supplies.
Image 4: My pineforest (new chunk) still remains as it becomes a road through an ocean that was originally there.
Image 5: Same as above, but with my campground I was trying to build up using planks, beams, and such.
Any way this world can be rescued? It seems to have suffered the same fate as Foxbox that I'd love to fix it ASAP so Harv could jump on to play on it. This ruined his weekend.