iphone - iOS 7.1 animation bug -

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yesterday updated iphone 5 ios 7.1 , found strange bug in current application. there few uinavigationcontrollers. after few transition in animation of transition become fast, there no animation @ all. more strange system animation became fast, default uitablecell animation, modal window animation , on.

does know this? on device 7.0.6 there no such problem.

looks starts happen after few calls of: [navcontroller setviewcontrollers:popviewcontrollers animated:animated];

ps: 1 more thing - app still using ios 6.1 sdk.

pps: don't use custom default animations.

update: 7.1 sdk problem still exists.

i have similar problem after updating iphone ios 7.0.3 7.1. go , forth several times using navigation bar , after few tries there no transition animation. animations broken when happens, eg. device rotation animation. after reaching state, few more , forth transitions cause crash.

edit 3:

in case problem because of accessing gui objects background queue. if experience issue make sure gui objects accessed main thread. many eugene helping me figure out.


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