I understand that others have been saying something about a similar glitch involving "Bed Obstruction" but this has a slight twist that I haven't seen mentioned yet so please hear me out.

I was adventuring in the Nether and died in a Bastion, thought to myself, "That's fine I'll just boot up the copy world."

So I did what I normally do beforehand and delete the original and make a copy of the copy (so that I wouldn't lose any of my precious equipment). I start the copy and spawn where my bed would be and land in the water below it, mind you I spawned where my bed would be except for the fact that the bed and house I made was entirely gone! Quit the world and boot up the copy I just made and the same thing happens, so I decide to explore the world and the areas I had been so far.

The Nether portal (the very same one I used to go adventuring in earlier) is gone the lava pool was back to how it was when I first found it, so I go to a tower I made in the distance except that is also gone... so I go back to the area where I spawned (the last bed where I slept, and was now gone) and venture past it too a mooshroom biome I had found and the broken Nether portal was also back to how it was the very first time I discovered it.

Needless to say everything I had ever interacted with was now back to how it was when I first discovered it since I started this world, it's as if I had never interacted with the world! Every sunken ships/underwater ruins was filled with the original loot that was in it. So I did my final test and threw myself into a lava pit and I spawn at the World Spawn and I get a message in the chat saying my bed was obstructed or whatever.

Am I the only one who has experienced this?

Pics in order are: upon death, the messed up world, and a screenshot a while before I had died in the Nether