{"action":"opened","issue":{"url":"https://api.github.com/repos/lionheart/openradar-mirror/issues/7586","repository_url":"https://api.github.com/repos/lionheart/openradar-mirror","labels_url":"https://api.github.com/repos/lionheart/openradar-mirror/issues/7586/labels{/name}","comments_url":"https://api.github.com/repos/lionheart/openradar-mirror/issues/7586/comments","events_url":"https://api.github.com/repos/lionheart/openradar-mirror/issues/7586/events","html_url":"https://github.com/lionheart/openradar-mirror/issues/7586","id":132995501,"number":7586,"title":"24607701: UIPageViewController crashes when triggering page change during animation","user":{"login":"openradar-mirror","id":13605213,"avatar_url":"https://avatars.githubusercontent.com/u/13605213?v=3","gravatar_id":"","url":"https://api.github.com/users/openradar-mirror","html_url":"https://github.com/openradar-mirror","followers_url":"https://api.github.com/users/openradar-mirror/followers","following_url":"https://api.github.com/users/openradar-mirror/following{/other_user}","gists_url":"https://api.github.com/users/openradar-mirror/gists{/gist_id}","starred_url":"https://api.github.com/users/openradar-mirror/starred{/owner}{/repo}","subscriptions_url":"https://api.github.com/users/openradar-mirror/subscriptions","organizations_url":"https://api.github.com/users/openradar-mirror/orgs","repos_url":"https://api.github.com/users/openradar-mirror/repos","events_url":"https://api.github.com/users/openradar-mirror/events{/privacy}","received_events_url":"https://api.github.com/users/openradar-mirror/received_events","type":"User","site_admin":false},"labels":[{"url":"https://api.github.com/repos/lionheart/openradar-mirror/labels/classification:bug","name":"classification:bug","color":"e11d21"},{"url":"https://api.github.com/repos/lionheart/openradar-mirror/labels/reproducible:sometimes","name":"reproducible:sometimes","color":"d4c5f9"},{"url":"https://api.github.com/repos/lionheart/openradar-mirror/labels/status:open","name":"status:open","color":"009800"}],"state":"open","locked":false,"assignee":null,"milestone":{"url":"https://api.github.com/repos/lionheart/openradar-mirror/milestones/4","html_url":"https://github.com/lionheart/openradar-mirror/milestones/iOS%20SDK","labels_url":"https://api.github.com/repos/lionheart/openradar-mirror/milestones/4/labels","id":1237418,"number":4,"title":"iOS SDK","description":null,"creator":{"login":"openradar-mirror","id":13605213,"avatar_url":"https://avatars.githubusercontent.com/u/13605213?v=3","gravatar_id":"","url":"https://api.github.com/users/openradar-mirror","html_url":"https://github.com/openradar-mirror","followers_url":"https://api.github.com/users/openradar-mirror/followers","following_url":"https://api.github.com/users/openradar-mirror/following{/other_user}","gists_url":"https://api.github.com/users/openradar-mirror/gists{/gist_id}","starred_url":"https://api.github.com/users/openradar-mirror/starred{/owner}{/repo}","subscriptions_url":"https://api.github.com/users/openradar-mirror/subscriptions","organizations_url":"https://api.github.com/users/openradar-mirror/orgs","repos_url":"https://api.github.com/users/openradar-mirror/repos","events_url":"https://api.github.com/users/openradar-mirror/events{/privacy}","received_events_url":"https://api.github.com/users/openradar-mirror/received_events","type":"User","site_admin":false},"open_issues":1238,"closed_issues":3,"state":"open","created_at":"2015-08-03T02:08:31Z","updated_at":"2016-02-11T15:01:38Z","due_on":null,"closed_at":null},"comments":0,"created_at":"2016-02-11T15:01:38Z","updated_at":"2016-02-11T15:01:38Z","closed_at":null,"body":"#### Description\n\nSummary:\r\nWhen triggering a page change through `setViewControllers:​animated:​completion:​` on a UIPageViewController while the controller is animating (e.g. showing a bounce animation)​, the controller crashes (most of the time)​.\r\n\r\nSteps to Reproduce:\r\nSteps to Reproduce:​\r\n0. Open the example project\r\n1. Run it on an actual device\r\n2. Scroll to the previous page (there is no, so the page view controller starts bouncing)​\r\n3. Try to go as far into the bounce as possible for a higher success rate\r\n4. Lift your finger so that the bounce animation starts\r\n5. Immediately (while the bounce animation is playing)​ tap the 'Next Page' button\r\n\r\nExpected Results:\r\nThe next page is shown\r\n\r\nActual Results:\r\nThe app crashes\r\n\r\nVersion:\r\niPhone 6 iOS 9.2 /​ iPhone 6s iOS 9.0.2\r\n\r\nNotes:\r\nSample Project: https://github.com/michaelochs/radars/tree/master/24607701%20-%20PageViewControllerCrash\r\n\r\nConfiguration:\r\niPhone 6 & iPhone 6s\n\n-\nProduct Version: 9.2\nCreated: 2016-02-11T14:51:39.680960\nOriginated: 2016-02-11T00:00:00\nOpen Radar Link: http://www.openradar.me/24607701"}}