Following the documentation here: https://docs.umbraco.com/umbraco-cms/13.latest/tutorials/add-google-authentication Once all hooked up and I go to link my user account I get the below error:

An unhandled exception occurred while processing the request.
InvalidOperationException: The 'Microsoft.AspNetCore.Mvc.ViewFeatures.Infrastructure.DefaultTempDataSerializer' cannot serialize an object of type 'System.Collections.Generic.List`1[Microsoft.AspNetCore.Identity.IdentityError]'.

Has anyone seen this, it doesn't look to be in any code I have control over, so I'm guessing it's in the core CMS somewhere? The path it's trying to access is: /umbraco/ExternalLinkLoginCallback