Shelly 2PM Gen3 Cover Scene need to be called twice

I have some Shelly 2PM Gen3 to control my covers. They work pretty good and the integration into HA was easy.
Now i have a problem with scenes.
I have a scene, where all the covers are getting closed and one of them just to a position of 40%. When i call this scene (via Homekit Bridge or directly into HA) all the blinds move for about 1s and then they stop. After another scene call they move to the saved positon.

Somebody got an advice how i can solve this?