After StB came down it looked like the side judge, who was on the side line at about the 10, was was nodding that the catch was good and was speaking - apparently into his headset. So it looked like he 'phoned it in' but for some reason he never signaled it. I don't know what the rest of the crew was doing though. Do side judges give priority to one of the other officials to signal TDs? I've never paid attention to that.