New answers tagged my-site
Sites will be migrated when you change the Site Naming Format, but last I looked, not the user's username [using Move-SPUser].
Based on the error status, SharePoint is saying no personal site exists for the user. Did you check whether Mysites is properly configured and you are able to access the page? I have faced the same issue and resolved it by recreating the User Profile in my dev UPA You can also try some of the solutions proposed here ...
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