Ran into this one today while trying to import a Blueprint into Pega and thought it was worth sharing.
If your application name starts with “Pega”, the import will fail. Both through Demo Live and a manual Blueprint import. The error isn’t super obvious at first, but the platform treats “Pega” as a reserved prefix, so the app creation step never completes. In my case, the Blueprint came through fine, but the final application creation step failed with the reserved name error.
Quick fix is simple: just rename the application to something that doesn’t start with “Pega” and rerun the import. After that, everything worked as expected. Small thing, but frustrating if you’re moving quickly.
