Route Planner Problem: mix of modes not possible

Let us assume I start planning a route as a hiker. Then I come to a point where maybe the map is wrong, or I want to walk along the beach where there is no path marked, or I just want to take a shortcut across a field. Until recently I could change the mode to "manual" just for this bit and then change back to "hike". That was a cool workaround for problematic bits of the route.

This behavior seems to have changed with a recent update. Now, if I change to "manual" the whole route that I have planned up to this point changes to "manual" - meaning it's straight connections between points. Definitely not the behavior I want. Obviously it is no longer possible to mix different modes in one route.