when Meredith comes to the interns' table to tell them who will perform the first surgery in solo, Jo is holding her cup in her right hand. After the cut, it's in her left hand.
When cutting to Dr. Yang at the Mayo Clinic in Rochester, MN, the two establishing shots show Mounds Avenue and the St. Paul Cathedral, both in St. Paul, MN, 90 miles away from Rochester.
When Owen is going to visit April in Moline at the farm a shot of a covered bridge is shown. The bridge is not located in Moline, IL, but in rural Madison County, IA. This is the same bridge, Roseman, featured in The Bridges of Madison County (1995).