selectnav in Behat test randomly fails

Builds randomly fail when testing selectnav.

    And I resize the browser to mobile                        # FeatureContext::iResizeTheBrowserToMobile()
    And I reload the page                                     # Drupal\DrupalExtension\Context\MinkContext::reload()
    When I select "Select a collection..." from "selectnav3"  # Drupal\DrupalExtension\Context\MinkContext::selectOption()
      Form field with id|name|label|value "selectnav3" not found. (Behat\Mink\Exception\ElementNotFoundException)
    When I select "To wear (12)" from "selectnav3"            # Drupal\DrupalExtension\Context\MinkContext::selectOption()

The driver is checking before jQuery does its magic, probably.