UE 5.6 Project Stuck at rc2.exe When Building

General Issues and Bug Reporting
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3

I have fixed the problem and hope this helps others in the future.
Compile time has been reduced from 20 minutes to just 1–2 minutes.

Edit:

1.<PROJECT_DIR>\Saved\UnrealBuildTool\BuildConfiguration.xml

<?xml version="1.0" encoding="utf-8" ?>
<Configuration xmlns="https://www.unrealengine.com/BuildConfiguration">
    <BuildConfiguration>
        <bAllowUBAExecutor>false</bAllowUBAExecutor>
    </BuildConfiguration>
</Configuration>

By the way,I also tried changing only the WindowsSdkVersion, but it didn’t help.

<?xml version="1.0" encoding="utf-8" ?>
<Configuration xmlns="https://www.unrealengine.com/BuildConfiguration"><WindowsPlatform>
    <WindowsSdkVersion>10.0.22621.0</WindowsSdkVersion>
</WindowsPlatform>
</Configuration>

And earlier, I also tried adding the configuration to
%APPDATA%\Unreal Engine\UnrealBuildTool\BuildConfiguration.xml, but that didn’t work either.

In the end, the following attempts did NOT work:

  • Modifying %APPDATA%\Unreal Engine\UnrealBuildTool\BuildConfiguration.xml

  • Changing the WindowsSdkVersion 10.0.22621.0

  • Adding the engine path and project path to the Windows antivirus whitelist

  • Verifying engine installation and Visual Studio2022

  • Rebuilding project files manually from .uproject

  • Running UE and Visual Studio as administrator

Thx to everyone above for the helpful replies.