Multiple Chests get generated in my world after the game crashes multiple times while trying to load a world.

Hello, I have stumbled upon a odd thing happening in my world where after my game had crashed while trying to load a new world a few times (I tried 4 times to load the world and on the fourth it worked) when I finally mannaged to get into the world I noticed 4 starting chests, 2 parallel from each other (with not space in between) and 2 more scattered  with a 9ish block gap in between also parallel from each other, as this doesn't seem as big of an issue for the game and also since I was on a superflat world, it doesn't need to be fixed immediately but I haven't tested to see if this also happens on non superflat worlds (infinite & amplified). Here is a photo and video for proof of it. (you may be able to get the same effect if you alt f4 or close your game when it is at 100 on the loading screen bc my game had kept crashing on that, also it has to be a new world)