Marks ‘nextend social login’ as spam registrations

Great plugin, thanks for providing for free. But I have found a conflict/issue with another plugin. I use ‘Nextend social login’ and it provides social logins. E.g. Google, facebook etc.. But it’s been marking google logins as spam.

Steps to Recreate:

1. First Step: Click on Google button to register.
2. Enter Google Name/password.
3. Next Step: It goes back to website page with just click on ‘register’ button.
4. Click on Register button.
5. Then it says registration marked as spam.
6. However, after this I can still log in with google and no need to register again.

I have tested this several times with the plugin on (I get this issue) and then with the plugin deactivated the issue is no longer there.

Thanks.