BUG: Basecamp Mac doesn't show elevation graph for routes in TopoActive Central 2021.10 map

Setup: Using Basecamp 4.8.11 on Mac with Garmin 66i w/ TopoActive maps 2021.10
Issue: Basecamp no longer shows the elevation graph for a route when the correct TopoActive Map is selected. My route uses the TopoActive Central 2021.10 map and the "Show Graph" menu option is greyed out and can not be selected. However, if I select TopoActive North 2021.10 map, which is NOT the correct map for my route, the "Show Graph" menu option is enabled and I can see the elevation plot