If you are using a live map, and you change the location of your gameboard, the exercises will be moved to the chosen location. They will be in their original zoom level; if you can't see them, try zooming in or out.
If you change from a live map into a map picture or vice versa, your tasks will appear on top of the new gameboard. The tasks will be next to each other. Drag the exercise points to your chosen location on your new gameboard.