mcctoolchest pe copied overworld area to nether instead of the nether area

My computer shut down in the middle of playing on my main bedrock world. When I reopened the world a strip of chunks was reset to the original overworld, nether, and end without any of our builds. I was able to use mcctoolchest to copy the overworld area from an older file version, but when I tried to paste in an area selection copied from the nether in the old world into the same space in the current version, it pasted the overworld, rather than the nether. It’s kind of trippy to see the overworld in the nether. Is this a bug with mcctoolchest or am I doing something wrong?