Only Scraping the first page, pagination issue

I am able to scrape the 1st page and maybe even the 2nd page of the pagination (seems AJAX as it doesn't change the URL). Please help.

Also, the page is protected by a password.

{"_id":"scrape","startUrl":["https://samplepage.com/memberdirectory"],"selectors":[{"delay":0,"id":"Member","multiple":true,"parentSelectors":["_root","nextpage"],"selector":".view-member-box","type":"SelectorElement"},{"delay":0,"id":"Name","multiple":false,"parentSelectors":["Member"],"regex":"","selector":".roster-member-name","type":"SelectorText"},{"delay":0,"id":"Member Since","multiple":false,"parentSelectors":["Member"],"regex":"","selector":".roster-since-date","type":"SelectorText"},{"delay":0,"id":"Spouse","multiple":false,"parentSelectors":["Member"],"regex":"","selector":".spouse-name-panel","type":"SelectorText"},{"delay":0,"id":"Occupation","multiple":false,"parentSelectors":["Member"],"regex":"","selector":".roster-occupation","type":"SelectorText"},{"delay":0,"id":"Employer","multiple":false,"parentSelectors":["Member"],"regex":"","selector":".roster-employer","type":"SelectorText"},{"delay":0,"id":"Email","multiple":false,"parentSelectors":["Member"],"regex":"","selector":".roster-normal-link","type":"SelectorText"},{"delay":0,"id":"Home Phone","multiple":false,"parentSelectors":["Member"],"regex":"","selector":".roster-resp-home-phone","type":"SelectorText"},{"delay":0,"id":"Cell Phone","multiple":false,"parentSelectors":["Member"],"regex":"","selector":".roster-resp-cell-phone","type":"SelectorText"},{"delay":0,"id":"Member Type","multiple":false,"parentSelectors":["Member"],"regex":"","selector":".roster-member-type","type":"SelectorText"},{"id":"nextpage","paginationType":"clickMore","parentSelectors":["_root","nextpage"],"selector":".ui-paginator-next","type":"SelectorPagination"}]}

Additional Info: Its also scraping the 1st page twice