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UMU - UCAS / UTOC Modding Update #1

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Hello everyone.

After some research on the UE4 / UE5 source code, it seems you can patch the function:

FIoStatus ValidateContainerSignature()

to allow modded UCAS files to load on UE 4.25 - 4.27 and maybe even 5.0 and above. (on games using RSA signing)
I am going to be adding this as a feature to UnrealModUnlocker and make a tutorial series on UCAS modding in the future.

Thank you all for being patient with me.
This takes a lot of research and work.

/GHFear @ Illusory

illusorysoftware PATREON 6 favs
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POSTEDFeb 12, 2023
ARCHIVEDJun 10, 2026