I have just merged several sites together, as normal this creates a number of duplicated entries in Admin Areas & grid squares.

Previously this has been a simple operation to delete these duplications, but no longer!

Deleting the duplicates under 'Grid Squares' works without any problems, but when I delete the duplicates inAdministrative Areas, I select one and press delete - fine, everything looks OK, but on pressing SAVE the remaining entry also disappears, i.e. in effect deleting one entry deletes both!

Craig