I wanted achievements again in my realm so I used MCC Tool Chest to allow them again and I did that but when I tried to upload to the realm it said upload failed (I know that's a duplicate but I should mention that). So I tried about 10 times and finally it got past exporting world and whatever it said next was there for like 20 minutes. So then I gave up and pressed the X button at the top of my computer. For some reason I could not join the realm it just loaded until the connection timed out. Finally after a while I joined and stuff was duplicated out of place and just weird there was achievements but I had to clean for a while. My friend said he has not joined in a while so it was not him.

 To recreate this you should take a big world over 95mb like mine.

1. Try to replace realm with it this should take a few tries to not have an error.
2. Wait about 5m on the thing after Exporting world I think its Initializing upload.
3. Press ALT F4.
4. Watch your world fall into ruins.

Ok screenshot 51 is WHY IS THERE LIKE 100 CHICKENS IN MY HOUSE???!!!!

Screenshot 52 is WHY IS THAT RAVINE BIGGER THAN IT USED TOO BE???!!!!