UE5.6 Linux - wrong Cross-Compile Toolchain

I had same problem.
For me working:

  1. Download and install
    https://cdn.unrealengine.com/CrossToolchain_Linux/v25_clang-18.1.0-rockylinux8.exe
  2. Add LINUX_MULTIARCH_TOOLS in Environment variables
    image
  3. Go to %AppData%\Roaming\Unreal Engine\UnrealBuildTool and add:
    <BuildConfiguration>
        <bAllowUBALocalExecutor>false</bAllowUBALocalExecutor>
    </BuildConfiguration>
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