I use amember with Wordpress multiste, the first login in amember, has a error: Fatal error: Call to undefined function switch_to_blog() in .../member/application/default/plugins/protect/wordpress/wordpress.php on line 321 and I refresh page (F5) that is OK. I logout and login again is OK. It has problem with function switch_to_blog() in the first login (new member). Please help!
We need more details to troubleshoot this issue. Do you mind to contact us in helpdesk ( https://www.amember.com/support ) ? We will troubleshoot this issue.