Continuity mistake: After the gunmen exit the gallery hiding amongst the hostages, during the gunfire multiple bullet holes are made on the back doors of the ambulance, but all those bullet holes have vanished a few shots later,.
Ho'oma'ike - S5-E6
Continuity mistake: Mr. Weiss is in the hospital talking with Chin, Kono and Lou with bandages covering both ears that were supposedly chopped off by Sam Cole During the conversation we see the bandages change to above his right ear showing his ear is fine. Next the shot shows bandages are covering both ears, then the shot switches again with bandages above his right ear, then back to covering both ears. (00:31:22)
Continuity mistake: When Kono shoots the bad guy who then falls off the balcony and lands on the hood of a truck, his head is toward the front of the truck. Later when they bring out the female leader of the gang the guy is lying across the hood.