I have created a development campaign where I can work on modules before exporting them and opening them in my regular campaign to use. I have a map which I added LOS to, and also added a few tokens such as pillars and pits and the like, and I put a number of combat encounters on the map. I then exported the map (and the encounters, tables, parcels etc) to a module file. The module export was created successfully. However, when I open the map in the gaming campaign, most of the added data is gone. The LOS is still there, but the added tokens and the encounters have all disappeared. All the other data such as tables, parcels etc, is still available. When I go back to the development campaign and reopen the map, all the data is still there.
Any idea why some of the added data is going missing?