The same problem!
AlexKon2000
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The problem has been resolved! Probably, Apple has fixed that!
I had the same problem. Try to replace "layer.masksToBounds = false" to layoutSubviews() cell's method. It solved my problem.
Try to scroll tableview to top in ViewController after reloadData of tableView
tableView.scrollToRow(at: IndexPath(row: 0, section: 0), at: .top, animated: false)