When Jeff Hardy climbed atop a ladder to perform his Swanton bomb move on Cesaro and Sheamus during the fatal four way tag team match, only Cesaro's ladder broke as fell more in Cesaro's direction. Sheamus soon fell to the floor on his own after Hardy didn't land on him.
During the main event, Roman Reigns botched an attempt to reverse Undertaker's tombstone piledriver, and ended up improvising another Superman punch instead for the near fall.
It's not known whether or not it was planned. But, During Kurt Angle's entrance for the Hall of Fame segment. Kurt did his signature finger point in the air, camera cuts to behind him. As if the fireworks were gonna go off. But, nothing happened.