@isazi, the above issue seems to be partially resolved but it is now broken in a different way.
On today’s run, the first climb segment showed as red for me on the overall climb profile, but when I attempted to zoom in the single segment view of Climb Guidance was just empty, meaning that it didn’t show any elevation profile at all. It still showed the remaining distance at the bottom.
This got resolved at the end of the first climb segment, after that zoomed in view (to individual climb /descent segments) worked correctly.
Also, what I have noticed is that zooming by distance did no longer work. I suspect this has something to do with the changes introduced in the latest firmware. There is now a new Climb Guidance settings menu inside Navigation settings which allows to select the default zoom mode - with Waypoint, Climb, and Distance options. I have rhe Waypoint options selected.
However on today’s run I didn’t have any waypoints on the route. I wonder if that contributed to the issue.