I just recently completed my upgrade to NPM 12 and SAM 6.2.4, and now I am having issues getting into my Network Atlas. When I try to load up a map I made, it hangs with a status message "Operation in progress, waiting for a connection". Before the upgrade, it worked fine.
When I originally created my own map, I added a couple of nodes, plus two application monitors to represent a VPN tunnel. I suspect the problem is that something isn't working correctly connecting to that app monitor for that VPN tunnel. Before I try to connect my maps, if I just browse the objects that are in it, they show up under "Unknown Objects", and then below that, two entries for the app monitors:

The application monitors still exist in Orion, and the both of the application and node ID's are still the same. I can browse to them and they appear to be polling just fine.
In the Network Atlas, however, I cannot seem to be able to delete them. As soon as I right click on the Map and select "Open", it just hangs. I suppose I could easily recreate those two connections if need be. Or, just figure out how to get them to reconnect.
Any thoughts on how I can fix this map?
Thanks!