I have come across a slightly odd bug while trying to associate a polygon with a location. In the first attempt I used the non-preferred name in the Find Location Name dialogue and this consistently returned a different location to the one I wanted. Using the preferred name returned the correct location, so not a serious problem but something to be aware of. A second attempt to reproduce this with another location resulted in the location window closing itself. A possibly related problem occurs when importing a map layer and attempting to match locations, use of the non-preferred name to search results in a null return.