Our setup requires very tightly controlled user groups which we named to match those we use elsewhere (like Dropbox and Office). So, we don't have a confluence-users group.
When I try to change the landing page under Further Configuration, I get the error below.
Is there any way to change everyone's default landing page without that group?

If this is legitimately hardcoded in, is my best option to re-create that user group and then give it permissions for the page?