error returned in URL for AppDelegate callback

[appsird]

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Description

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Versions

iOS SDK version
Spotify app version (if native SSO flow is involved)

Severity

Trivial, Minor, Major, Catastrophic

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Actual behaviour

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Expected behaviour

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when running the Sample test, for the following AppDelegate callback:

    func application(_ app: UIApplication,
                     open url: URL,
                     options: [UIApplicationOpenURLOptionsKey: Any] = [:]) -> Bool {
        let handled = SpotifyLogin.shared.applicationOpenURL(url) { _ in }
        return handled
    }

I receive the following for the url content:

loginsample://?error=invalid_app_identifier&error_description=The%20app%20identifier%20is%20not%20valid%20with%20the%20client%20ID%20provided

This appears to be flagging an error regarding incorrect app id, though I have checked and rechecked and this is the ID as specified on the developer portal.

Is this an issue? The Sample app ignores the contents returned in the url

thanks.

I am using the most recent Xcode Version 10.1 (10B61)