UI Blocking occurs when an event of MFC Control occurs on top of WebView2.

[LEE-YONG-UN]

https://user-images.githubusercontent.com/34335444/123605545-ebc01600-d836-11eb-9d40-dafa5260aa97.mp4

UI Blocking occurs when mouse up/down event occurs on MFC Control (Tab control) above WebView2.

However, hiding the window and showing it again solved the problem.

What causes these problems?

I am using vs2015, and it is a project created based on a MFC dialog box.

Version : Microsoft.Web.WebView2 (1.0.864.35) Microsoft.Windows.ImplementationLibrary (1.0.190610.2)

AB#34287592

[champnic]

Hey @LEE-YONG-UN - this looks like an issue on our end, so I've added a bug on our backlog. Thanks!