User registration - email confirmation and password setup
Why a user is presented with WordPress page to set his initial password?
It looks non consistence with the theme.
Don't you have a wpForo screen for that?
We turned on the WordPress default User registration mode with email confirmation and password reset link (option is located in Forums > Settings > features admin page). You can turn this option off if you don't want to use native WordPress registration.
Have you checked the option I've mentioned above?
Please make sure the "Enable Registration with email confirmation" is turned off.