Hallo -- I have a class called LinkActorToActorGroupJoin (I know...) as a has_many attribute in a class called ActorGroup. My understanding is that deleting from ActorGroup#link_actor_to_actor_group_joins should remove from this collection & persist. I''ve tried direct delete on objects in the collection, which remove the object from the collection, but this is not persisted when I reload the collection, as the object I previously deleted is back again! Can anyone help? -- doug.