For me it looks like (in the moment) that only "Select distance" is working.

I should mention, though, that I'm only trying it here at home right now, so the conditions might not be right.

If I use "Select distance" the next upcoming kilometers will be newly calculated.
If I use "Select waypoint" or manual I get an error message and there is now new route.
But I am not sure how to use it correctly.

What is the correct way for select WP and/or manually?