After I type on User Name and Password text boxes in app and then click on "Login" button, I got following error and app is crashed.
***** Assertion failure in -[UIKeyboardTaskQueue waitUntilAllTasksAreFinished], /BuildRoot/Library/Caches/com.apple.xbs/Sources/UIKit/UIKit-3599.6/Keyboard/UIKeyboardTaskQueue.m:432 2017-05-09 10:30:00.984744 NetCast[657:113345] * Terminating app due to uncaught exception 'NSInternalInconsistencyException', reason: '-[UIKeyboardTaskQueue waitUntilAllTasksAreFinished] may only be called from the main thread.' * First throw call stack:**
I encounter that problem whenever I login.