Bug using UserManager.CreateUser ?

I am using Sitefinity 6.3... I do not understand why this call is not actually creating a user.

http://i.imgur.com/UfyUiFH.png

User is not showing up anywhere, but status = Success and the CreateUser method is returning a User object and not throwing any errors.  Am I missing something here?

Thanks!

Dave

manager.SaveChanges() required?

That was it, thank you very much!