Rovaron on "[Plugin: WP Mail Bank - PHPMailer & SMTP Mailer] Works fine with "send test email" but dont work on register user"

Hi all,
Sorry for my bad english.

I installed the plugin, configurated smtp host and port and try to send the test email.

The test mail works fine, i received it in a couple of seconds.
But when i register a new user and select the option "send login info"
the email is not sent.

Maybe is some conflict with other plugin, i dont know.
Please help me, i spent 3 days triyng to solve this, but no success.

Thanks in advance.

https://wordpress.org/plugins/wp-mail-bank/