Pecular action at "end" of a 3D flight

I used Litchi Hub to design a 3D model mission with 4 Oblique passes.

The drone flew and photographed the mission nicely… but when it got to the end waypoint, it hovered for 3+ minutes and took 55 identical photos that were not needed, then flew home and landed.

Have I done something wrong?
Looking in the Hub I could not find a way to edit or even check the final/end waypoint.

Marv

Perhaps this thread will help: