Oidc sign in loop

Hey Folks,

Looking for a little assistance here as i seem to be missing something for this.
When following along with:

I have run into an issue where after signing in, it just gets caught in an infinite loop of a blank sign in screen.

I have everything configured just about the same foe ODIC middleware, and still get caught in the loop.

This is a ASP.net Core 3.0 MVC app running in IIS

Any help would be appreciated!