Switch dual activation

[xRadx]

Hi,

I'm using HA Core 2024.8.1 and MySensors 2.3.2 with arduino Mega board connected via USB (Serial GW) as a relay hub.

Here is the presentation code:
void presentation() {
sendSketchInfo("Relays1", "1.0");
for ( uint8_t i = 0; i < RELAYS_CNT; i++)
{
relays.id[i] = i + 1;
present(relays.id[i], S_BINARY);
}
}

All the relays are visible in HA with a consecutive order, however (de)activation of one switch on a HA dashboard causes that also a next one is (de)activating.

Any ideas what could be the reason/what'd be the solution?

Side question:
is it possible to change the child description from the HA level?