Eye of the Universe

The Eye of the Universe, also known as Anti-Orbis or Alter-Orbis, is a Minecraft world of unknown origin that appeared on the server host of Orbis Season 2 on June 7th, 2023. It appears to be a regular world generated on 1.20, but its actual seed is unknown - the seed displayed by the server for the world was the same as Orbis'. Additionally, all of Orbis' entities were present in the world. The world also had the same world border size as Orbis - 4000x4000 - but its chunks were fully generated in a 10368x10368 square. 
The Eye was created when Brazilian attempted to upload Orbis' file to the server host in anticipation of the upcoming Season 2. However, upon joining the server, he noticed that it looked completely different from what was expected. Upon downloading the save file - which had over 3 GB in size as opposed to Orbis' 800 MB - and inspecting it with MCA Selector, the full scale of the anomaly became apparent. This did not affect Orbis itself, which was reuploaded successfully shortly after, but the oddity of this event has led it to being compared with the Conjunction of the Spheres.
An explanation provided by H1p0 points toward the world having been independently generated by the host and then having its entity data, but not regions, overwritten by Orbis during the upload. However, it is not known why or how such a large area was generated, since no players joined the server at that stage of the setup.