In my model I have groups saved as separate files so that when users modify the groups I can reload them onto the model. But when I try to do that lately, the error "this action has caused the _____ workset to be deleted" appears, with the only option of making the objects editable, which would take a long time because I have many instances of the groups on my model. This error also appears when trying to delete the whole group, an instance or all instances of it. What's going on !?! Thanks