Dreame X40 Ultra works, but not for a single room

English, bitte.

You need to post in English, please.

oh sorry, I have integrated my Dreame X40 Ultra with integration from HACS v2.0.0b16. I can see map and rooms from Lovelace and start am stop cleaning for entire home. But when I select single room and press play nothing happens, but it gives me back “unable to discover device over cloud”. Can you help me?

Have you checked this integration’s issues on its GitHub project?

Unfortunately, I don’t know this integration.