External ID login page not showing identity providers

I am trying to create a login flow using an custom OIDC identity provider, but the login page is just showing a prompt for email and password without a way to log in using the external identity provider. I have configured the identity provider in Entra, and created a new user flow that should include the identity provider.

Additionally, when an application is added to the user flow, any login using that application shows an error saying "We couldn't find an account with this email address" when trying to log in with a user that was working previously. I'm not sure if this is related to the missing identity provider or not.

Is there a way to fix this? Any help is appreciated!