i blend my map inside it self

[Lupe #savetf2]

i know it sounds confusing but i was tryng to make the other half of the map symmetryc with a skip brush, while i copyng the half of the map the program crashed and now there is a copy of my map inside of my map, there is a way to i delete the other part without the need of deleting everything individualy?

 

[Pocket]

It's probably easier to just abandon the autosave and revert back to the last manual save you made, even if it means having to redo a bunch of work. It's still in there; autosave never overwrites it and in fact goes into a completely different folder.