In Scully's vision where she's walking William to school, a woman in a gray dress walking with her daughter are shown walking behind and catching up to them in one shot, then just as they're almost beside each other the shot changes, then changes again, at which point the woman and her daughter are several paces behind them again. Another woman, wearing a brown jacket, is seen walking past them in the middle shot, but she is nowhere to be seen in the first shot, and in the third shot she's behind them.
When Dr Goldman prepares to take blood from Kyle, he ties a tourniquet to Kyle's left arm. The camera focuses on the blood flowing into the syringe. When the camera pans back and Dr Goldman is removing the needle, the tourniquet is gone.
Jackie Goldman, in flashback, notices her daughter missing, runs out of the house, and finds her underwear in the swimming pool. She then tells the agents that her daughter was under water for at least 10 minutes. She wouldn't know that unless she was aware of when her daughter went into the pool.