While "Automatic transitions" is enabled in the timeline, when I add a transition, e.g. by clicking on the bottom-right circle of a clip, then select that transition, the Automatic Transition checkbox in the Clip menu is unchecked and greyed out, and the transition doesn't dynamically move with the clips.
Did I miss a step ?

I'm on:
Kdenlive 20.04.1 appimage
Manjaro KDE