How do you de-select "Select a recommended workout automatically"?

I’ve tried deselecting this checkbox so xert won’t override my selection of workout, but if I refresh or return to the main screen, it’s always re-selected. Is there a trick to turning off this feature? It’s a problem because sometimes I have selected as workout but by the time I’m all geared up and ready to ride, xert replaces my selection with a different workout.

Which browser are you using?

Chrome on MacOS