User group admin in AEP91

Hi,

I'm not sure if this is expected functionality, a bug or a setup problem with my system.

We use list based authentication. We add users to a list and setup the relevant groups for them to go in (Webport only, admin etc)

However the users never appear in the list of available users in the group management area. Instead we have to add them again, which is time consuming with lots of users.

Also users that are deleted still show in the groups and although you can remove them them the group, they are still in the list (see screenshot for what I mean).

Its like the "edit groups/users" tool doesn't know what users are on the system.

Is this expected behaviour?

Thanks

Joe