I'm using a UITextField in a popup view (since several years) but since a while the App dies as soon as the text field is clicked (even if all event handlers are removed). It then fires an exception:
System.Exception: Failed to marshal the Objective-C object 0x125b19c80 (type: UIView). Could not find an existing managed instance for this object, nor was it possible to create a new managed instance (because the type 'UIKit.UIView&' does not have a constructor that takes one IntPtr argument).
Being unable to debug/solve it directly, and as work-around, I tried to use a button/label with an Alert View and embedded text field, instead. But as soon as I present the alert view ctrl the same happens. Other controls in the same popup view work without any issues.
Any help is greatly appreciated. It's also possible to earn a few bucks here, I can provide access to the App code hosted on bitbucket. I'm a Xamarin.iOS dev since 2013 and usually solve my issues by myself, but here I'm kinda lost...