Echo mode + Screen display bug

[lkusinski]

Device: AS25RBAHRA-PL (Air conditioner)
When I try to disable Echo mode (I suppose this entity is switcher for buzzer sound turn on/turn off) it also disables screen display.
Entities:
switch.klima_janek_echo
switch.klima_janek_screen_display

Those two entities seems to be connected. I think this is a bug.

[gvigroux]

I also have very strange behaviors on my side:

• When I change the screen display it works, but when I refresh the current state from the cloud (every minute) I receive conflicting info, first a bad one and then a good one). I assume the cloud is not yet updated (even if my change request is sent to the cloud...). So I consider it works
• But When I change the echoStatus, it works as well BUT the cloud returns always an invalid value after the change even if there is no more echo sound on the device