We are unable to save after adding a shape annotation by drawing a triangle option (other drawing shape annotations can be saved and working fine). PdfViewer_ShapeAnnotationAdded event is not called when we complete drawing triangle shape annotation. Please see the recorded video. Thanks.
Steps
1- Open a PDF
2- Click shape annotation option
3- Click to add the first triangle drawing option
4- Start drawing triangle on PDF
5- Unable to close the shape without leaving the editor
6- Checkmark icon which represents save is not enabled.