Tom, I finally had a chance to re-try the new editor. I notice some things are now working (borders, setup, etc), but still having trouble showing the continents.
Here is the map I tried to update - https://www.wargear.net/boards/view/8864" target="_blank" style="background-color: rgb(0, 51, 0); color: rgb(204, 204, 204);">Ravenloft - Adventure Parties, the 3p scenario.
I added 3 new continents, but those are the only continents which show when I try to edit. This map should have a ton of continents.