ios7 - iOS 7 navigation bar visual glitch when transitioning between view controllers -


i've got simple setup using segues display simple master/details configuration. when pushing or popping navigation controller, right hand side of navigation bar has strange grey shadow. see this video demo.

enter image description here

if remove subviews detail controller , set background red (see video), still grey artefact, , strangely, red appears behind navigation bar once entire transition has finished.

any idea why happening?

well, strange, deleting , re-creating identical view controller in storyboard fixed issue.


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