RSS ACNH Ryujinx Save Corruption

[GBATEMP]

My Animal Crossing New Horizons save got corrupted on Ryujinx. My PC shut down while Ryujinx was still running after I saved in game.

• main.dat is 9,924 KB with valid version 655400,655362
• mainHeader.dat appears corrupt/zeroed out
• NHSE gives "Unknown revision" error with all zeros
• Game detects save but shows corruption error
• Save is from 3/21/2026
• Would anyone be able to help repair the header or knows a tool that can fix this?

I can upload save files if needed

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