{"action":"created","issue":{"url":"https://api.github.com/repos/xamarin/Xamarin.Forms/issues/1424","repository_url":"https://api.github.com/repos/xamarin/Xamarin.Forms","labels_url":"https://api.github.com/repos/xamarin/Xamarin.Forms/issues/1424/labels{/name}","comments_url":"https://api.github.com/repos/xamarin/Xamarin.Forms/issues/1424/comments","events_url":"https://api.github.com/repos/xamarin/Xamarin.Forms/issues/1424/events","html_url":"https://github.com/xamarin/Xamarin.Forms/issues/1424","id":283385215,"number":1424,"title":"ViewCell - Specified CAST is not valid (iOS)","user":{"login":"MsXam","id":18722796,"avatar_url":"https://avatars2.githubusercontent.com/u/18722796?v=4","gravatar_id":"","url":"https://api.github.com/users/MsXam","html_url":"https://github.com/MsXam","followers_url":"https://api.github.com/users/MsXam/followers","following_url":"https://api.github.com/users/MsXam/following{/other_user}","gists_url":"https://api.github.com/users/MsXam/gists{/gist_id}","starred_url":"https://api.github.com/users/MsXam/starred{/owner}{/repo}","subscriptions_url":"https://api.github.com/users/MsXam/subscriptions","organizations_url":"https://api.github.com/users/MsXam/orgs","repos_url":"https://api.github.com/users/MsXam/repos","events_url":"https://api.github.com/users/MsXam/events{/privacy}","received_events_url":"https://api.github.com/users/MsXam/received_events","type":"User","site_admin":false},"labels":[{"id":770579803,"url":"https://api.github.com/repos/xamarin/Xamarin.Forms/labels/p/iOS","name":"p/iOS","color":"ed841c","default":false},{"id":343860851,"url":"https://api.github.com/repos/xamarin/Xamarin.Forms/labels/t/bug","name":"t/bug","color":"fc2929","default":false}],"state":"closed","locked":false,"assignee":null,"assignees":[],"milestone":null,"comments":13,"created_at":"2017-12-19T22:09:05Z","updated_at":"2018-02-23T14:55:04Z","closed_at":"2018-01-18T17:43:25Z","author_association":"NONE","body":"### Description\r\nXamarin forms APP deployed on iOS Device/Simulator causes System.InvalidCastException: Specified cast is not valid.\r\n### Steps to Reproduce\r\n\r\n1.  Take the attached XAML file (Strip out references to prism if not using Prism) and Create a NavigationPage that navigates to this view.\r\n2. Run the APP on (We used a Live Device iPhone X running iOS 11.2)\r\n3. When the App appears - place your finger on the TableView and rapidly scroll up and down so that the contents of the TableView scrolls in BOTH directions.\r\n\r\n### Expected Behavior\r\nExpect the contents of the TableView to simply scroll up and down.\r\n### Actual Behavior\r\nAfter a few scrolls up and down - the APP CRASHES\r\n### Basic Information\r\n\r\n- Version with issue:\r\nXF 2.5.0.121934, XF 2.5.0.91635 havent tested other versions\r\n- Last known good version:\r\nWe dont get the issue with XF 2.3.4.270\r\n- IDE:\r\nVS 2017 Enterprise (Windows 10)\r\n- Platform Target Frameworks: <!-- All that apply -->\r\n  - iOS:  Fails on iOS.  <!-- The version of the iOS SDK you are compiling against, e.g. 11.1 -->\r\n  - Android: No Issues On Android<!-- The version of the Android SDK you are compiling against, e.g. 7.1 --> \r\n  - UWP:  Havent tested on UWP <!-- The version of the UWP SDK you are compiling against, e.g. 16299 --> \r\n- Android Support Library Version:  N/A<!-- if applicable -->\r\n- Nuget Packages:\r\n- Affected Devices:\r\nWe get this issue on Simulators and also live Devices - i.e iPhone X & iPhone 7 Plus so far tested and fails\r\n\r\nOther Info :\r\nMicrosoft Visual Studio Enterprise 2017 \r\nVersion 15.5.2\r\nVisualStudio.15.Release/15.5.2+27130.2010\r\nMicrosoft .NET Framework\r\nVersion 4.7.02556\r\nXamarin   4.8.0.753  \r\nXamarin Designer   4.8.188\r\nXamarin.Android SDK   8.1.0.25 \r\nXamarin.iOS and Xamarin.Mac SDK   11.6.1.2 \r\n\r\n\r\n### Screenshots\r\n![image](https://user-images.githubusercontent.com/18722796/34180642-696f6186-e507-11e7-9b9f-f9d6dac023c7.png)\r\n\r\n![image](https://user-images.githubusercontent.com/18722796/34180757-c1bbd98c-e507-11e7-883c-3a9f7920eb65.png)\r\n[ViewCell.txt](https://github.com/xamarin/Xamarin.Forms/files/1573403/ViewCell.txt)\r\n\r\n<!-- If the issue is a visual issue, please include screenshots showing the problem if possible -->\r\n\r\n### Reproduction Link\r\n\r\n<!-- Please upload or provide a link to a reproduction case -->\r\n"},"comment":{"url":"https://api.github.com/repos/xamarin/Xamarin.Forms/issues/comments/368031346","html_url":"https://github.com/xamarin/Xamarin.Forms/issues/1424#issuecomment-368031346","issue_url":"https://api.github.com/repos/xamarin/Xamarin.Forms/issues/1424","id":368031346,"user":{"login":"opcodewriter","id":15019084,"avatar_url":"https://avatars0.githubusercontent.com/u/15019084?v=4","gravatar_id":"","url":"https://api.github.com/users/opcodewriter","html_url":"https://github.com/opcodewriter","followers_url":"https://api.github.com/users/opcodewriter/followers","following_url":"https://api.github.com/users/opcodewriter/following{/other_user}","gists_url":"https://api.github.com/users/opcodewriter/gists{/gist_id}","starred_url":"https://api.github.com/users/opcodewriter/starred{/owner}{/repo}","subscriptions_url":"https://api.github.com/users/opcodewriter/subscriptions","organizations_url":"https://api.github.com/users/opcodewriter/orgs","repos_url":"https://api.github.com/users/opcodewriter/repos","events_url":"https://api.github.com/users/opcodewriter/events{/privacy}","received_events_url":"https://api.github.com/users/opcodewriter/received_events","type":"User","site_admin":false},"created_at":"2018-02-23T14:55:04Z","updated_at":"2018-02-23T14:55:04Z","author_association":"NONE","body":"Sorry. I love Xamarin. I just hope things will get much better, and sooner."}}
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