If I try to correct a misspelled keyword or move to new parent the old one persits. I delete it and I can uncheck all references to it, but when I check a subkeyword, they alnd all the others return. In the example, I corrected spelling of Oediponinae, which has subs and parents. I selected all and un checked them, and deleted the mis-spelled and its subs. So none are checked. I then start anew and check some in Trimeritropin and the others reappear. It is like an elementary particle that inexplicably action on one affect the other with no connection. So I have lots of the double cases I can't rid.