@FullSky ,
@Vera1970
You need to restore that offline gamesave profile backup into a Disney Speedstorm game via any homebrew.
Install basegame v0 0100F0401435E000 with update v327680 (1.0.1b) + DLC Ultimate Founders Pack [0100F0401435F002][v65536].
Then my route was like this:
— Update
DBI to it's latest version. Then go into Airplane Mode on a Switch, start the game on its first cutscene movie, then close it.
— Run dbi MTP USB, on a PC click Switch > 7: Saves > Installed Games > Disney Speedstorm > %here_your_username%, and delete everything inside this folder.
— Copy the contents of the 'Profile Unlocker' folder into this opened folder. Then close dbi and start the game.
— After starting the game, click OK on all Airplane Mode notifications then in the window "Failed to login!" click on the Play button.
Voilà!