Destinations enumerator empty

I am using a GoSimpleNode with an image in a variety of places on a diagram. The nodes appear to link up OK visually but when I query the destinations, destinationlinks, sources or sourcelinks enumerators they are always empty.
Any ideas?
Thanks Greg

Maybe you actually have two nodes for each node that you think you have, and you are looking at one that isn’t actually connected to anything, whereas its twin is perhaps hidden underneath what the user can select but has the links.