iOS Cannot access a disposed object 'TextPreviewDialog' when navigate away then select a different image then add text

This only reproduce on real devices, NOT simulators. Nuget package version 16.3.0.29. The source code is here:

https://github.com/motoko89/sfimageeditortest

Steps:

1. Select an image and navigate to PhotoEditPage which contains SfImageEditor

2. Navigate back from the Page

3. Select another image

4. Add text

5. Click the text to edit

Result: Crash

Cannot access a disposed object.
Object name: 'TextPreviewDialog'.
  at Foundation.NSObject.get_SuperHandle () [0x0004a] in /Library/Frameworks/Xamarin.iOS.framework/Versions/12.1.0.15/src/Xamarin.iOS/Foundation/NSObject2.cs:456
  at UIKit.UIView.set_Frame (CoreGraphics.CGRect value) [0x00024] in /Library/Frameworks/Xamarin.iOS.framework/Versions/12.1.0.15/src/Xamarin.iOS/UIKit/UIView.g.cs:3426
  at Syncfusion.SfImageEditor.iOS.TextPreviewDialog+<>c__DisplayClass3_1.<.ctor>b__0 (System.Object s, UIKit.UIKeyboardEventArgs e) [0x001a5] in <389cd290f367469aaccdfb36d2d56b6a>:0
  at UIKit.UIKeyboard+Notifications+<>c__DisplayClass10_0.b__0 (Foundation.NSNotification notification) [0x00000] in /Library/Frameworks/Xamarin.iOS.framework/Versions/12.1.0.15/src/Xamarin.iOS/UIKit/UIKeyboard.g.cs:280
  at Foundation.InternalNSNotificationHandler.Post (Foundation.NSNotification s) [0x00000] in /Library/Frameworks/Xamarin.iOS.framework/Versions/12.1.0.15/src/Xamarin.iOS/Foundation/NSNotificationCenter.cs:48
  at (wrapper managed-to-native) ObjCRuntime.Messaging.void_objc_msgSend_IntPtr(intptr,intptr,intptr)
  at UIKit.UIView.AddSubview (UIKit.UIView view) [0x0001b] in /Library/Frameworks/Xamarin.iOS.framework/Versions/12.1.0.15/src/Xamarin.iOS/UIKit/UIView.g.cs:267
  at Syncfusion.SfImageEditor.iOS.TextPreviewDialog.ShowPopUp (System.Boolean animated, System.Action popAnimationFinish) [0x00043] in <389cd290f367469aaccdfb36d2d56b6a>:0
  at Syncfusion.SfImageEditor.iOS.Utils.CreateTextDialog (Syncfusion.SfImageEditor.iOS.Shape SelectedShape, Syncfusion.SfImageEditor.iOS.SfImageEditor imageEditorBase) [0x00032] in <389cd290f367469aaccdfb36d2d56b6a>:0
  at Syncfusion.SfImageEditor.iOS.DrawShapeView.TouchesEnded (Foundation.NSSet touches, UIKit.UIEvent evt) [0x003fa] in <389cd290f367469aaccdfb36d2d56b6a>:0
  at (wrapper managed-to-native) UIKit.UIApplication.UIApplicationMain(int,string[],intptr,intptr)
  at UIKit.UIApplication.Main (System.String[] args, System.IntPtr principal, System.IntPtr delegate) [0x00005] in /Library/Frameworks/Xamarin.iOS.framework/Versions/12.1.0.15/src/Xamarin.iOS/UIKit/UIApplication.cs:79
  at UIKit.UIApplication.Main (System.String[] args, System.String principalClassName, System.String delegateClassName) [0x0002c] in /Library/Frameworks/Xamarin.iOS.framework/Versions/12.1.0.15/src/Xamarin.iOS/UIKit/UIApplication.cs:63
  at RssXamarin.iOS.Application.Main (System.String[] args) [0x00001] in /Users/admin/Documents/RSS-Xamarin/RssXamarin/RssXamarin.iOS/Main.cs:17

Hi Roman,

We have created a separate support incident under your account to keep track of this issue and also we have updated the patch for this issue in incident.

Please log on to our support website to check for further updates.

http://www.syncfusion.com/Account/Logon?ReturnUrl=%2fsupport%2fdirecttrac/  

 

Regards,
Jeya k 

Hi Derek, 

  

Sorry for the inconvenience, 

  

We can able to reproduce the reported issue at our end and we have fixed the same issue in our updated version 16.3.0.36. Could you please upgrade your product version to 16.3.0.36. 

  

Please get back us, if you have any concern. 

  

Regards, 

Michael