When using the manual page selector on user lists, the page does not change.

This one has an easy workaround. In the page address bar you can add some extra code to jump between pages:

youraccount.donesafe.com/admin/settings/users?page=yourdesiredpagenumber

EG: https://vandalay.donesafe.com/admin/settings/users?page=250

Changing the page number here will allow you to jump back and forth over large numbers of pages. Adding "?page=yourdesiredpagenumber" will work for other longer index pages also.