Membership users can't access their content

Hello WPMU,

We are experiencing a problem with our users. They can't the access protected content for their membership level.

On the standard user list (not the membership 'all members' list), the membership permissions column on the far right has defaulted to 'none' for all users besides admin. Clicking 'edit' under 'none' only brings up a scroll bar which gets stuck and doesn't go anywhere.

I'm not sure if the 'membership permissions' on the user list are what's causing the issue.

If someone clever could help asap.

Many thanks.