705.0 592.6 y 183.8 4022 
Summary

https://imgur.com/uxnVTi4

Maybe it’s not really a bug. Features of game mechanics (engine) and terrain creation.

This happens when you explore the map looking for something unusual.
For example, on the other side of the lava river, where the entrance to the acheron ruins (outside) and the secret item is a “non-material” stone that allows you to ascend and descend in alternative ways.