This may be a duplicate of, or related to,
Using the UI, I changed the applications pool from my "OneDrive1TB" pool to "mainpool". This created an empty ix-applications dataset in mainpool, but left the original dataset and all of its content on OneDrive1TB.
I don't have any plugins installed yet; I was just about to test them but wanted to use my permanent pool
Attaching screenshot of storage page, and debug log.