manker U22 III SFT40 wird 3-click behavior

I bought manker U22 III SFT40 recently.

And I just can't figure why it's behaving strangely with 3-click (doesn't matter if from OFF, or ON, as it should always go to the "Special mode" )

If's I 3-click half the time it's goes to the "General mode", and other half time it goes to the "Special mode", and it remembers the last time, and always go to the other mode.

It feels as it's going "Turbo -> general mode" instead the "Special mode" half the time, but then the second half time it do go to the "Special mode" correctly.


And it's always alternating the two. If I'm in "Special mode", and do 1-click, to turn it off, the next time I 3-click, I will always get the "Turbo -> general mode"
If I 1-click to turn it off, and and do 3-click I go to the "Special mode". Then If I do 1-click, to turn it off, the next time I 3-click, I will always get the "Turbo -> general mode"


The timing, and the speed of click doesn't matter...

The UI should look like this, but I just can't get to the "Special mode" half the time, and it's consistent half the time.