CB Core Fields Ajax only working if Profile View Access Level set to all users

I have a site using CB where users must maintain their own details but not have access to other profiles. I've enabled Core Fields Ajax to assist with this. It works fine when user is an admin, but not otherwise. I traced this behaviour to the setting in Configuration>User Profile>Profile View Access Level - it works perfectly if the setting is a user group to which the user belongs. If not, the pencil icons appear but clicking on the field causes the entry to disappear, and no editable field or Update/Cancel buttons show.

Is that expected? It seems odd because the user is still able to access cb-profile-edit via menu, just not directly via the Ajax plugin. If so I won't be able to use the plugin as I need to set the Profile View Access Level to admin-only.

The ajax endpoint is not accessible because the profile technically is not accessible. They can still access themselves to an extent, but it won't be entirely functionality. I've added a feature ticket to look into improving the ajax endpoint to see if self access can be ignored for the profile access check so the usages are consistent. This change would likely have to happen in CB I believe.

forge.joomlapolis.com/issues/6403

As a workaround you can use CB Privacy and its Profile Privacy field or a redirect in CB Auto Actions to keep users from accessing other users profiles.

Many thanks, the CB Privacy workaround did the trick, so will run with that. Would be good to get consistency though, so thanks for raising the ticket.