Cover.open_cover did not work for mqtt cover

Configuration
1

Hi, I have the problem that the service cover.open_cover and cover.close_cover did not work for my mqtt covers.

If I try il get “Entity cover.jalousie_bad does not support this service.” but the mqtt cover itself is controllable via fronted. I can set its position without a problem.

Here is my discover message for the example mqtt cover:

Topic: homeassistant/cover/enet-01/enet-27-jalousie_position/config
Message:

{
   "name":"Jalousie Bad",
   "device_class":"blind",
   "position_topic":"enet/27/jalousie_position",
   "set_position_topic":"enet/27/jalousie_position/set",
   "position_open":0,
   "position_closed":100,
   "optimistic":false,
   "unique_id":"enet-27-jalousie_position"
}