When Jon fights off the other three trainees defending Sam, one of them says that he yields, while holding his sword. In the exact next shot, his sword is on the ground several feet away from him, without sufficient time to drop it.
In Bran's dream he is about to shoot at a target when the three-eyed crow flies across. We see in closeup that the forefinger of his shooting glove is
twisted under the bowstring, which would spoil the loose.