Legend is part way off screen.
Legend is fixed and located at the upper right corner of the Maps Window for maps like Existing and Proposed Topography Map. Other legends will be seen in the lower right corner instead, such as Cut/Fill Map. We have improved this in OSDv2.
You can also move the map image around using View > Pan > left click the map and drag it to new location, or zoom in and out using the mouse wheel to make it appear clearer and closer to the Legend.