AVPlayer display in UITableViewCell showed two more partial avplayers

I had a simple test app that has a tableview with 50 rows, and I try to put an avplayer {{0, 1232}, {320, 200}} in row 28 of a screen {{0, 0}, {320, 480}}. Every other row is a simple cell with textlabel of {320, 44}.

However I got a portion of the avplayer showing up on rows 5 and 17 when I scroll to row 28, where the full player showed up.

Any idea what might have gone wrong here?