When I enter a portal from the Overworld, the portal in the Nether gets destroyed and replaced by a new portal 1 block higher.
Then when I enter a portal from the Nether, a new portal gets created in the Overworld about 5 blocks away from the original portal, but I spawn underground nowhere near the new portal that was created.
Also, whenever a new portal is created, the surrounding blocks get replaced by air. I lost a double chest full of goods this way.
When I enter a portal from the Overworld, the portal in the Nether gets destroyed and replaced by a new portal 1 block higher.
Then when I enter a portal from the Nether, a new portal gets created in the Overworld about 5 blocks away from the original portal, but I spawn underground nowhere near the new portal that was created.
Also, whenever a new portal is created, the surrounding blocks get replaced by air. I lost a double chest full of goods this way.