At the end of season 12 when they are working on Jerry, Dr Weaver walks in and says "Jerry?" Surprised to find him there. She then goes to look at the X-rays and speaks to Abby. Abby leaves the room and passes out. At the beginning of this episode Weaver walks in to the room clearly knowing Jerry is in the room and Abby is not to be seen until Weaver finds her on the floor.
When the police officer is chasing Steve's SUV, the spotlight on the cop car changes positions in between shots.
When Pratt and Neela walk in the Emergency room doors Dr. Weaver tells them Jerry has gone up to surgery. A few minutes later they showed Jerry in trauma 2 just before Morris was able to get the line in his upper vein.