AppAuth-iOS: Logout function not working on iOS > 14

Hello, I’m experiencing an issue on iOS > 14. The logout function “OIDEndSessionRequest” isn’t working correctly and I can’t complete the logout procedure.

This is my code:

let config = OIDServiceConfiguration(authorizationEndpoint: URL(string: AUTHORIZATION_ENDPOINT)!, tokenEndpoint: URL(string: TOKEN_ENDPOINT)!, issuer: URL(string: ISSUER)!, registrationEndpoint: URL(string: REGISTRATION_ENDPOINT)!, endSessionEndpoint: URL(string: END_SESSION_ENDPOINT)!)

let logoutRequest = OIDEndSessionRequest(configuration: config, idTokenHint: (authState?.lastTokenResponse?.refreshToken)!, postLogoutRedirectURL: URL(string: "REDIRECT_URI")!, state: (authState?.lastAuthorizationResponse.state)!, additionalParameters: nil)

let storyboard = UIStoryboard(name: "Main", bundle: nil) let vc = storyboard.instantiateViewController(withIdentifier: "myView") as! MyViewController

let userAgent = OIDExternalUserAgentIOS(presenting: vc)

OIDAuthorizationService.present(logoutRequest, externalUserAgent: userAgent!, callback: { (authorizationState, error) in })

The error code received is: “Error Domain=org.openid.appauth.general Code=-3”

Can you help me please?

Thanks in advance