Don't know how relevant it is but I've noticed that when ad's fail to load on my laptop it always seems to be the same adverts that fail (e.g. the Cirque du Soleil one). Clicking the new re-try makes no difference. Also other adds like Animal Jam and Adventure Capitalist never fail. Might be something worth investigating.
 "Rhomb"){kind=icon}
 "Zombidle"){kind=icon}
it shouldn't work that way, have no idea why would this happen, but maybe, using different browser would help. Thanks for feedback