hi, im having a similar issue. when i save a file with rc for the first time it tells me it is gonna resave in ppi, then if i save it a second time it lets me press save and unlock from ppi, after that i wont be able to modify the project as it tells me error in decrypting key. in both cases, after first or second save, if i close the program and reopen the project it still gives me the decryption file error. i uninstalled an older version of rc i had, deleted every file in program files, app data and deleted registry, reinstalled but still error. Before deleting all those files the error was a bit different as i still had decrypting key error but with the message error 7126 and component 0 missing.