iPhone 6/6 Plus: UITableView separator flickering and different thickness

Question

I\'ve got a UITableView with separator set to Single Line.

On iPhones <= 5s everything looks fine, but on 6 and 6 Plus (device as well as simulator)

Answer 1

Aqua is right, the thickness and flickering problems go away if you add iOS8 launch images.

But you don't need to make actual launch images if you are using storyboards. In Xcode, select your overall project and your app target, then under the General tab find App Icons and Launch Images, then in the Launch Screen File popup, just select your storyboard and the thickness/flickering problems go away.