Map Place Additions/Deletions Not Saved

Question

If I manually add or remove places on a map page in a book using the + - functionality, the changes don't get permanently saved. Does anyone know why? iPhoto remembers them OK.
If I add a photo to a map page by dragging it into a photo field, it remembers that place and adds it to the map (using the GPS data). If I later remove that content (i.e. photo) it also refuses to save that deletion on the map. I want the map to show a selection of places on my travel route, not necessarily just the ones where I took photos.
Both additions and deletions appear OK until I change the project or view (e.g. select Viewer, or quit the app etc.). Any thoughts?

Answer 1

I have discovered what the problem is. It looks like a bug!
Sequence of Events:
1. I used the map template 1-Up w/Map.
2. I then dragged a few different photos into the photo frame. This added the GPS locations from the photos to the map.
3. I then deleted the photo frame using the Edit Layout controls.
4. I tried to add and removed (manually) places on the map.
5. Aperture remembered the original places from the original photo frame, but not any places I subsequently added or removed manually (using the + - functions in the list of places).
To solve this problem I deleted the map page, then inserted a new 1-Up w/Map page, then deleted the photo frame before I did anything. Adding/removing places using the + - manual functions then worked perfectly.