Error with Google Login, ASP.NET Core Web API and Blazor WASM

[hexjourney]

I've been trying to implement Google OAuth with a custom JWT, Blazor WASM and asp net core web api with no luck. I have used net core Identity and Microsoft.AspNetCore.Authentication.Google as well. For now my own JWT authentication works but I'm struggling the moment I add an external identity provider. There are many parts involved with authentication and I guess my knowledge is not good enough.

Is there any example out there using a similar architecture?

I have posted as well a question in SO with additional information:
Error with Google Login, ASP.NET Core Web API and Blazor WASM

Thanks!