I’ve recently decided to switch from string to GUID as the unique identifier for the IdentityUser. I have successfully applied the migration to the database, but now the UserManager methods don’t work anymore. Finding a user by email with the DbContext works fine (DataContext.Users.SingleAsync(...)) but returns null with UserManager(UserManager.FindByIdAsync(...))

I’m following along with the steps described here:
https://hts.readthedocs.io/en/latest/quickstarts/3_interactive_login.html