Need support Sign In With Apple in unreal

Hello,
I follow this tutorial for Adding Sign In With Apple use os-objective-c: https://stackoverflow.com/questions/…os-objective-c
But I always get this error when performRequests:
Authorization failed: Error Domain=AKAuthenticationError Code=-7026 “(null)”
I tried research on google and seem problem is I need add “SignIn with Apple” capability. But I already add “SignIn with Apple” capability to my x-code project follow this link: https://help.apple.com/xcode/mac/11.0/#/dev50571b902
But it still don’t working with error: Authorization failed: Error Domain=AKAuthenticationError Code=-7026 “(null)”.
So I think that adding “SignIn with Apple” capability to x-code project will not add that capability to unreal project. could anyone help me please?
(*note: Apple has made a requirement to have the “Sign In With Apple” option from IOS 13, so maybe my unreal current version is 4.24 does not support it?).