JW test page is adding an additional overlay DIV In addition to Google IMA SDK adding overlay div which is blocking the click. Check this screenshot https://www.screencast.com/t/ScBNtrWhl3 where highlighted is the DIV added by Google SDK and pointed one is additional DIV added by JW Player.
Is this how publishers use JW Player on their site or ONLY happening on this test page?
I would suggest asking JW player to not add additional DIV when using Google IMA SDK which is already adding overlay DIV.
test tag: http://req.tidaltv.com/tpas1.aspx?mt=1&pid=1&logs=0&xf=35&fmid=640974&imavpaidmode=insecure