Shutter Device shows wrong values

Hey Guys,
after many days i´ve setup my shutters over FHEM and MQTT in Homeassistant.

# Bad Rollo
 - name: Bad Fenster Rollladen
   unique_id: "fhem_Ba_Fenster"
   command_topic: "fhem/set/Ba_Fenster"
   state_topic: "fhem/Ba_Fenster/state"
   position_topic: "fhem/Ba_Fenster/position"
   set_position_topic: "fhem/set/Ba_Fenster"
   payload_available: "true"
   payload_not_available: "false"
   payload_open: "up"
   payload_close: "down"
   payload_stop: "stop"
   state_opening: "drive-up"
   state_closing: "drive-down"
   position_open: 0
   position_closed: 200
   optimistic: true
   qos: 1

When i listen on fhem/Ba_Fenster/position i became the correct value under my mosquitto app.
When i look under my custom shutter-card:

type: custom:shutter-card
title: null
entities:
  - entity: cover.bad_fenster_rollladen
    name: Bad Rollladen
    buttons_position: left
    invert_percentage: false

there is always the wrong value.

Or i missunderstand that… when i set the shutter on 60% and go to the card where is the position, there alwals is 0 or 100.

Sorry, but i´m a newbie and hope someone can explain me where´s the mistake.

remove optimistic: true

delete it or set it to false?

Delete it

aah. seems fine. thank you.