Deathadder chroma "switching off when idle"

Hello,
I have two Razer peripherals, Deathadder mouse and Ornata Chroma keyboard.

I configured both peripherals with Spectrum Cycles chroma settings, checking the "Switch off all lightning when display is turned off" and setting computer idle after 10 minutes.

This worked fine till last week, but now I have a wierd behaviour.

When the computer goes idle (waiting the idle timer or locking the PC) the keyboard and the mouse correctly switch off (and the monitor turns off), but after a while, without any kind of external input, the Deathadder returns on and remains enlightened forever (while keyboard and monitor are still off).

I can also add that normally mouse and keyboard spectrum is syncronous but as soon as I lock the PC (CTRL+ALT+CANC) they start to be asyncrounous (that is they show different color cycles) and return syncronous only when the PC is unlocked, and the same happens when the PC exits from idle and the other peripherals turns on (keyboard and monitor).

I tried reinstalling the Synapse 2.0 and rebooting the PC many times, bit the issue remains.
I don't think that something in my system is breaking idle because, if that, I would also find the keyboard and the monitor on, and on only the mouse.

Thanks.
Maurizio.