Cocoon (1) - S1-E1
Continuity mistake: As McGarret goes to call the cops, Brent removes the knife from the John Doe assailant's hand. As the angle changes, Brent takes the knife from the dead man's hand again.
Continuity mistake: There's much too abrupt a transition between Reese falling into the water and his body suddenly being back on the dock. As there's no time lapse implied at all, he seems to reappear on shore by magic. At least a brief shot of the body being fished out of the water might have helped. (00:49:40)
... And They Painted Daisies On His Coffin - S1-E7
Continuity mistake: McGarrett strong-arms Tommy-Tommy, the Hawaiian fence, on the beach, and the guy gets sand all over his face during their scuffle. When McGarrett pulls him to his feet, the sand is still there. But in the next shot, all but a small patch near his temple has disappeared. (00:32:40)
... And They Painted Daisies On His Coffin - S1-E7
Continuity mistake: When McGarrett arrests Big Chicken at the end of the episode, he twists Chicken's right arm up behind his back, but then in the next shot, Chicken's arm is up above his head on the door in front of him. (00:49:10)
Twenty-Four Karat Kill - S1-E8
Continuity mistake: McGarrett gets out of his car wearing a gray suit, and walks into Dennisen's office wearing a blue one. (00:20:15)
Twenty-Four Karat Kill - S1-E8
Continuity mistake: When Andrea finishes wiping the test fluid from the gold bar, she holds it out with her left hand. After the cut scene, her right hand is holding the bar.
Continuity mistake: Throughout the episode, Larsen's first name is "Dan." But in the end credits, he's listed as "Steve." (00:49:00)
Pray Love Remember, Pray Love Remember - S1-E14
Continuity mistake: Danno walks several feet into McGarrett's office to make a report. Though there's no break in the dialogue and no time for him to have moved, the shot cuts and he's suddenly standing outside the door as they finish their conversation. (00:02:45)
Continuity mistake: Auston leaves the unconscious Dan Williams lying on his back. But in the next shot, Danno's lying on his side. Later, the seriously wounded Danno instantly changes positions between shots several more times, switching from face down to face up on the floor. (00:02:30 - 00:32:00)
Continuity mistake: When Ms. Karabinos is worried her father is dying, she is holding her face in her hands, but then her arms are suddenly down by her sides. (00:24:55)
Continuity mistake: Kealoha puts his gun back in its shoulder holster before walking a few feet across the parking lot to meet McGarrett. When we cut to a two-shot of them, Kealoha puts his gun away all over again. (00:32:30)
Continuity mistake: During the stand-off, Big Chicken is standing several inches to McGarrett's left, on the other side of a seam in the concrete wall. When the shot cuts to a closer angle, Chicken is instantly close enough to touch shoulders with McGarrett, and is now blocking the concrete seam. (00:25:30)
Not That Much Different - S1-E23
Continuity mistake: When Steve is questioning Lannie Devereaux, his arms change position several times on the back of his chair, without him actually moving. (00:24:15)
Continuity mistake: McGarrett has infiltrated a crime syndicate and is standing on the patio of a beachside house with two men and a woman while Danno, in a boat several hundred yards offshore, is taking pictures with a camera and telephoto lens. When the pictures are developed, the background in the photos is the ocean, not the beach house and patio.
Answer: He was fired. He never really appreciated his character. He felt Kono was portrayed as a big dumb Hawaiian and that the stereotype was racist. He also felt underutilized. He was fired after a heated argument with the show's publicist regarding his character. It seems there's not much details given regarding the incident or the firing, so it's seems possible he upset the show's producers as well.
Bishop73
No he said something derogatory about one of the Jewish producers that's why he was fired.