Controlling Viessmann Vitodens Gas Heater Boilers locally (new models 100-W, 200-W, ... after 2018)

Unfortunately, it seems like I’m not able to change/activate Party Mode via optolink. After toggling any of switches:

switch:
  - platform: optolink
    name: Economy mode
    id: economy_mode
    address: 0x2302
    icon: mdi:sprout-outline
    update_interval: 123s

  - platform: optolink
    name: Party mode
    id: party_mode
    address: 0x2303
    icon: mdi:glass-cocktail
    update_interval: 72s

  - platform: optolink
    name: Economy mode M2
    id: economy_mode_m2
    address: 0x3302
    icon: mdi:sprout-outline
    update_interval: 303s

  - platform: optolink
    name: Party mode M2
    id: party_mode_m2
    address: 0x3303
    icon: mdi:glass-cocktail
    update_interval: 307s

They change (temporarily) its own presets and after several seconds all goes back to previous state (I guess once values are read again).
There is a post: Viessmann OpenV vcontrold Client (Optolink) - #62 by pashdown saying that setting new values doesn’t work…

@adorobis does it work on your side? And if so, did you need to change anything else in boiler/heater?