I try to attempt to export my Minecraft world called, “Survival World”. It first says that there is an issue and to wait. Ok, I thought, I'll just copy the world. But it claims that I have little storage even though I have 700GB of storage, and the world is 17.8 MB. I deleted most of the storage, but still won’t fix the solution. And its not corrupted either.
Is your world stored in the Shared folder or the numeric folder? You can check here:
C:\Users\YourUsername\AppData\Roaming\Minecraft Bedrock\Users