How does watch work ?

Using edge:0 was my first step. Thats were the problem started.
I changed to 2 watches to have the option to use different debounce for falling and for raising.
Anyway, I switched back to one watch for testing.

function initWP(){
  var arr = new Uint8Array(100),pnt = 0,pulsePort = D3;
  pulsePort.mode('input_pullup');
  function pulseHnd(e){arr[pnt++] = e.state;}
  function logPulse(){
    console.log(new Uint8Array(arr.buffer,0,pnt));
    clearWatch();
  }
  setWatch(pulseHnd,pulsePort,{repeat:true,edge:0,debounce:5});
  setTimeout(logPulse,5000);
}

Problem stays.
Next, based on a hint from @MaBe, used 2 wires connecting on a breadboard to simulate pulses instead of my rotary and got similiar problem. This time I've falling edges without raising between (2nd and 3rd example)

initWP()
=undefined
new Uint8Array([0, 1, 0, 1, 0, 1, 0, 1, 0, 1])
>initWP()
=undefined
new Uint8Array([0, 0, 1, 0, 1, 0, 1, 0, 1])
>initWP()
=undefined
new Uint8Array([0, 1, 0, 0, 1, 0, 0, 0, 1, 0, 1, 0])