Clicking link, when emulating device, does not work

When I run my script against Chrome browser, it works fine.
When I change the capabilities to emulate Galaxy S5, the click on link does not work

        capabilities:
          extra_capabilities:
            chromeOptions:
              mobileEmulation:
                deviceName: Galaxy S5

I use PsySh and can use these statements (which the code also does)

>>>  $link = $parent->getElement($linkname);
=> SensioLabs\Behat\PageObjectExtension\PageObject\InlineElement {#8076}
>>> $link->click()
=> null

Nothing happens & I see no error in the developers console.

The xpath is //a[contains(@href,'register/one-month')]

When I use the following w/in the developers console, the click works:

foo = $x("//a[contains(@href,'register/one-month')]")[0]
foo.click()

Any suggestion on how to debug this?

Thanks!

sensiolabs / BehatPageObjectExtension