Null refresh token

[michael.wolfrum]

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Calling RefreshTokenAsync() returns null refresh token

Background: Auth0.OidcClient.Core, Auth0.OidcClient.iOS, Auth0.OidcClient.Android (v3.1.2 for all) Xamarin Forms app Auth0Client is encapsulated in a service in my iOS and Android projects Calling LoginAsync() returns a refresh token successfully each time. Calling RefreshTokenAsync() does not return a new refresh token, and only returns null for that property. Is that the expected behavior?? Is calling RefreshTokenAsync() not supposed to return a new refresh token? Am I supposed to continue …

Refresh Token Result is null

I am using to auth0 to authenticate my Xamarin Forms application. I am able to authenticate and also get a refresh token. However, the following line always returns null. var refreshTokenResult = await _auth0Client.RefreshTokenAsync(refresh_token); Any idea why?