I had the same problem. My config for the covers was:
- name: "EG AZ Rollo"
move_long_address: "13/0/0"
move_short_address: "13/1/0"
position_address: "13/2/0"
position_state_address: "13/3/0"
It seemed that when activating a scene, a move_long_address was activated but shortly after that, the move_short_address also.
I changed it now to:
- name: "EG AZ Rollo"
move_long_address: "13/0/0"
stop_address: "13/1/0"
position_address: "13/2/0"
position_state_address: "13/3/0"
So the key was to set the stop_address instead of move_short_address. My actor (MDT JAL-0810M.02) uses the same address for short movement and stop.
Everything works as now before.