Xcode Compile fails Codesign exit code 1. With Cert installed

I’m building the editor from source for the first time. I was following the instructions it worked as a debug development build but once I added the code sign so it would build a release build I got this:

  CodeSign /Users/username/Desktop/UnrealEngine-release/Engine/Binaries/Mac/ShaderCompileWorker.app
        cd /Users/username/Desktop/UnrealEngine-release/Engine/Intermediate/ProjectFiles
        export CODESIGN_ALLOCATE=/Applications/Xcode.app/Contents/Developer/Toolchains/XcodeDefault.xctoolchain/usr/bin/codesign_allocate
        
    Signing Identity:     "Mac Developer: MyDeveloperAccount (US********)"
    
        /usr/bin/codesign --force --signXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXX --timestamp=none /Users/username/Desktop/UnrealEngine-release/Engine/Binaries/Mac/ShaderCompileWorker.app
    
    /Users/username/Desktop/UnrealEngine-release/Engine/Binaries/Mac/ShaderCompileWorker.app: No such file or directory
    Command /usr/bin/codesign failed with exit code 1

Every time I get this now. can someone tell me what is going on.

Mac OS Sierra 10.12.1 Editor from 4,14,0 release source.

Whole system is fresh install all the way around.

I’m using a paid developer account

Don’t enable the development sign if you don’t buy apple’s provisioning.

Could you explain what you mean by “development sign”? I have the same error and am not an Apple developer, and don’t care about code signing, just trying to develop my game and this keeps happening seemingly at random? If there is a check box somewhere, or something like that, I’d be very grateful and it might answer this question.