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→SaveData.dat format versions
The Home Menu code for writing the updated SaveData.dat to FS is broken when the filesize is smaller than expected due to being from an older format-version originally. When writing to the file, Home Menu checks the filesize then attempts to use [[FSFile:SetSize]] on mismatch, but [[FSFile:SetSize]] can't be used with extdata(error from [[FSFile:SetSize]] appears to be ignored). When writing to SaveData.dat the write-size is the one for the current format-version, but since extdata files are fixed-size this will only result in the first {original filesize} bytes being written(result-code = 0xE0E046C1).
The Home Menu code for writing the updated SaveData.dat to FS is broken when the filesize is smaller than expected due to being from an older format-version originally. When writing to the file, Home Menu checks the filesize then attempts to use [[FSFile:SetSize]] on mismatch, but [[FSFile:SetSize]] can't be used with extdata(error from [[FSFile:SetSize]] appears to be ignored). When writing to SaveData.dat the write-size is the one for the current format-version, but since extdata files are fixed-size this will only result in the first {original filesize} bytes being written(result-code = 0xE0E046C1).
Basically, unless the extdata is deleted from the SD card FS manually, the SaveData.dat filesize will never be successfully updated from an old filesize to the current-format filesize by Home Menu.
== Home Menu [[Home_Menu/Themes|Theme]] SD [[Extdata|ExtData]] ==
== Home Menu [[Home_Menu/Themes|Theme]] SD [[Extdata|ExtData]] ==