sorry for the hold up, after doing some testing in a brand new world on creative, it appears this only occurs on realms
it’s April 24th 2019 and i’m having the same problem, I uploaded my world to the realm from my xbox one s and I want to move it to my iPad which has 90 GB left of space and the world in question is only 474.0 MB
sorry for the hold up, after doing some testing in a brand new world on creative, it appears this only occurs on realms