Problem with watches on esp32

Only a few pins are available for setWatch. Its checked with jshCanWatch in targets/ESP32/jshardware.c
Just checked with D12 and that works.

bool jshCanWatch(
    Pin pin //!< The pin that we are asking whether or not we can watch it.
  ) {
  return pin == 0 || ( pin >= 12 && pin <= 19 ) || pin == 21 ||  pin == 22 || ( pin >= 25 && pin <= 27 ) || ( pin >= 34 && pin <= 39 );
}