This usually happens if there is a region mismatch. Utage is a Japanese region game; ensure your save file isn't meant for the original Sengoku Basara 3 (Sengoku Basara: Samurai Heroes), as they have different Game IDs.
What does your downloaded save data have ( .bin , .sav , or a folder)? Share public link Save Data Basara 3 Utage Wii Dolphin Emulator
: Before renaming or overwriting any folders, keep a copy of your original save files to avoid data loss. This usually happens if there is a region mismatch
Dolphin organizes save data based on unique regional Game IDs. Open the . Locate Sengoku Basara 3 Utage in your game list. Right-click the game and select Properties . Click on the Info tab. Save Data Basara 3 Utage Wii Dolphin Emulator
: Android/data/org.dolphinemu.dolphinemu/files/Wii/title/ . Regional Save Conversion