Rush tank solo 2.5 smartaudio problem with ardupilot

Greetings

I am using rush tank solo 2.5 VTX and matek slim v4

Smartaudio setup is correct. I can switch power with assigned RC5 channel 25 ml , 500ml and 1000ml. ( confirmed visually )

However, it will not switch to maximum power which is 2512 ml when using smartaudio. Even when I enter the value manually in VTX_Power.

Physically when I push the button it dose switch to maximum power.

Have anyone solved this limitation issue in ardupilot with smartaudio ?