App getting crash when set TKFormTextField to custom inputView

[pradipaub36]

*** Terminating app due to uncaught exception 'UIViewControllerHierarchyInconsistency', reason: 'child view controller:<UICompatibilityInputViewController: 0x10ce43760> should have parent view controller:<0x10694f600> but requested parent is:<UIInputWindowController: 0x107049600>'
*** First throw call stack:

[hlung]

@pradipaub36 what's your code setup?